a) Define a hazard.
b) Define a risk.
c) How is risk calculated by formula?
d) Describe how hazard and risks are related?
Answers
a) A hazard is a potential source or situation that can cause harm, damage, or adverse effects to individuals, property, or the environment. Hazards can be physical, chemical, biological, ergonomic, or psychosocial in nature.
They are typically associated with specific activities, substances, processes, or conditions that have the potential to cause injury, illness, or damage. b) Risk, on the other hand, refers to the likelihood or probability of a hazard causing harm or negative consequences. It is a measure of the potential for loss, injury, or damage associated with a hazard. Risk takes into account both the severity of the potential harm and the likelihood of its occurrence. It involves assessing and evaluating the exposure to hazards, the vulnerabilities of the affected entities, and the potential consequences. c) Risk is often calculated using the formula: Risk = Hazard Probability x Consequence Severity The hazard probability represents the likelihood or chance of the hazard occurring, while the consequence severity measures the extent or magnitude of the potential harm or damage. By multiplying these two factors, the overall risk associated with a hazard can be quantified. d) Hazards and risks are closely related concepts. Hazards represent the potential sources or situations that can give rise to risks. Hazards exist regardless of the level of risk, but risks arise when hazards interact with exposure to individuals or assets.
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Related Questions
Ethanol blended with gasoline can be used to power a "flex-fueled" car. One particular blend that is gaining in popularity is E85, which is 85% ethanol and 15% gasoline. E85 is 80% cleaner burning than gasoline alone, and it reduces our dependency on foreign oil. But a flex-fueled car costs $ more than a conventional gasoline-fueled car. Additionally, E85 fuel gets % less miles per gallon than a conventional automobile. Consider a 100% gasoline-fueled car that averages miles per gallon. The E85-fueled car will average about miles per gallon. If either car will be driven miles before being traded in, how much will the E85 fuel have to cost (per gallon) to make the flex-fueled car as economically attractive as a conventional gasoline-fueled car? Gasoline costs $ per gallon. Work this problem without considering the time value of money.
Answers
Answer: hello your question is poorly written below is the complete question
Ethanol blended with gasoline can be used to power a flex-fueled car. One particular blend that is gaining in popularity is E85 , which is 85% ethanol and 15% gasoline. E85 is 80% cleaner burning than gasoline alone, and it reduces our dependency on foreign oil. But a flex-fueled car costs $1,000 more than a conventional gasoline-fueled car. Additionally, E85 fuel gets 10% less miles per gallon than a conventional automobile. Consider a 100% gasoline -fueled car that averages 30 miles per gallon. The E85-fueled car will average about 27 miles per gallon. If either car will be driven 81000 miles before being traded in, how much will the E85 fuel have to cost (per gallon) to make the flex-fueled car as economically attractive as a conventional gasoline-fueled car? Gasoline costs $3.89 per gallon. Work this problem without considering the time value of money
answer :
$3.17
Explanation:
Determine how much E85 fuel have to cost
Fuel needed by 100% gasoline fueled car
= 81,000 miles / 30 = 2700 gallons
Fueled needed by E85 car
= 81,000 miles / 27 = 3000 gallons
next step : use the relation below
[ (Additional cost of flex fuel car) + (flex fuel consumption * cost of flex fuel per gallon( x ) ) ] = [ Gasoline consumption * cost of gasoline per gallon ]
= 1000 + 3000x = 2700 * 3.89
= 1000 + 3000x = 10503
∴ x = 9503 / 3000 = $3.17 per gallon
Hey everyone!
This question is hard.
What specific fluid goes in the windshield wipers? (I never drove a car before)
And how much to put in fluid ounces? (So you don't blow a car up)
Answers
I’ve never driven either. But I’m pretty sure there is not really specific fluid you have to use. Just to name a few are Rain-X Bug Remover Windshield Washer Fluid, Prestone AS657 Deluxe 3-in-1 Windshield Washer Fluid.
For how much, there should be a little line or 3/4th of the way full.
Hope this helps!
Answer:
What specific fluid goes in the windshield wipers.
Distilled water
How much to put in fluid ounces?
There should be a tiny bit more than 3/4 of the way full.
1. Which of these best describes a programming language?
a. A set of rules where symbols represent actions.
b. A set of spoken commands for a robot.
c. An action performed by a robot.
d.
A list of behaviors the robot already completed.
Answers
The phrase "system of rules where symbols represent actions" sums up programming languages the best.
What best describes a programming language?Symbols that represent actions are used in a computer language's set of rules. Programming languages are the set of instructions that a computer uses to carry out projects. A programming language is a vocabulary and a set of grammatical rules for telling a computer or other computing equipment to carry out particular tasks.
High-level languages such as BASIC, C, C++, COBOL, Java, FORTRAN, Ada, and Pascal are typically referred to as programming languages. instruction. The principles that specify how a language is structured are known as syntax. In computer programming, syntax refers to the rules that govern how words, punctuation, and symbols are organized in a programming language. To define algorithms or write programs to control a machine's behavior, programmers utilize programming languages.
Therefore the correct answer is option A ) A set of rules where symbols represent actions.
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A 1.2 newton block is dropped A 1.2 Newton block is dropped downward from a tall cliff. What is the magnitude and direction
of the force of air friction on the block when it reaches its terminal velocity?
1.2 newtons upward
1.2 newtons downward
0.12 newtons upward
0.12 newtons downward
Answers
Answer:
1.2 Newtons upwards
Explanation:
because the friction is opposite of the magnitude.
How would I get this python code to run correctly? it's not working.
Answers
Answer:
See Explanation
Explanation:
This question requires more information because you didn't state what the program is expected to do.
Reading through the program, I can assume that you want to first print all movie titles then prompt the user for a number and then print the move title in that location.
So, the correction is as follows:
Rewrite the first line of the program i.e. movie_titles = ["The grinch......."]
for each_movie_titles in movie_titles:
print(each_movie_titles)
usernum = int(input("Number between 0 and 9 [inclusive]: "))
if usernum<10 and usernum>=0:
print(movie_titles[usernum])
Line by line explanation
This iterates through the movie_titles list
for each_movie_titles in movie_titles:
This prints each movie title
print(each_movie_titles)
This prompts the user for a number between 0 and 9
usernum = int(input("Number between 0 and 9 [inclusive]: "))
This checks for valid range
if usernum<10 and usernum>=0:
If number is valid, this prints the movie title in that location
print(movie_titles[usernum])
Use the HELPrct data from the mosaicData to calculate the mean of all numeric variables (be sure to exclude missing values)
Answers
To calculate the mean of all numeric variables in the HELPrct data from the mosaicData package, we can use the colMeans() function in R. This function calculates the mean of each column in a data frame.
However, it only works on numeric columns, so we need to first remove any non-numeric columns or missing values.
To do this, we can use the select_if() function from the dplyr package to only select columns that are numeric. Then, we can use the na.omit() function to remove any rows with missing values. Finally, we can use the colMeans() function to calculate the mean of each column.
Here's the code:
library(mosaicData)
library(dplyr)
# Select only numeric columns
numeric_cols <- select_if(HELPrct, is.numeric)
# Remove rows with missing values
numeric_cols <- na.omit(numeric_cols)
# Calculate column means
means <- colMeans(numeric_cols)
# Print the result
print(means)
This will give us the mean of each numeric column in the HELPrct data, excluding any missing values.
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Saturated steam at 3 atm will flow through a 3 in. Schedule 80 steel pipe. In order to decrease the heat losses to the surrounding air (at 20 oC) the pipe will be insulated. There are two types of insulating materials available, each with a thickness of 2.5 cm. Thermal conductivity of insulator A is 0.04 W/m.K and that of insulator B is 0.20 W/m.K. Both insulators will be used, in order to have the least heat loss. Which insulator should be covered outside
Answers
Both insulators result in the same heat loss, which is 812.3 W. Therefore, in terms of minimizing heat loss, it doesn't matter which insulator is covered outside.
To calculate the heat loss, we can use the formula for overall heat transfer:
Q = U * A * ΔT
Where:
- Q is the heat loss (W)
- U is the overall heat transfer coefficient (W/m².K)
- A is the surface area of the pipe (m²)
- ΔT is the temperature difference between the steam and the surrounding air (K)
First, let's calculate the surface area of the pipe. The circumference of the pipe can be calculated as:
C = π * diameter = 3.1416 * (3 in. * 0.0254 m/in.) = 0.2384 m
The surface area can then be calculated as:
A = 2 * π * r * L
- r is the radius of the pipe (m), which is half the diameter
- L is the length of the pipe (m)
Assuming a pipe length of 1 meter:
r = 0.5 * (3 in. * 0.0254 m/in.) = 0.0381 m
A = 2 * π * 0.0381 * 1 = 0.2393 m²
Now, we can calculate the overall heat transfer coefficient (U) using the convective heat transfer coefficient (h) and the thermal conductivities of the insulators:
U = 1 / (1 / h + δ1 / k1 + δ2 / k2)
- δ1 and δ2 are the thicknesses of insulator A and insulator B, respectively (m)
- k1 and k2 are the thermal conductivities of insulator A and insulator B, respectively (W/m.K)
Assuming δ1 = δ2 = 0.025 m (2.5 cm):
U = 1 / (1 / 15 + 0.025 / 0.04 + 0.025 / 0.20) = 4.245 W/m².K
Now, we can calculate the temperature difference (ΔT):
ΔT = Ts - Ta = 100 - 20 = 80 K
Finally, we can calculate the heat loss (Q) for both insulators:
Q_A = U * A * ΔT = 4.245 * 0.2393 * 80 = 812.3 W
Q_B = U * A * ΔT = 4.245 * 0.2393 * 80 = 812.3 W
Both insulators result in the same heat loss, which is 812.3 W. Therefore, in terms of minimizing heat loss, it doesn't matter which insulator is covered outside.
However, it's worth noting that insulator A has a lower thermal conductivity, which means it is a better insulator and can potentially provide better thermal performance in other aspects such as temperature gradients across the insulation.
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Both insulators result in the same heat loss, which is 812.3 W. Therefore, in terms of minimizing heat loss, it doesn't matter which insulator is covered outside.
To calculate the heat loss, we can use the formula for overall heat transfer:
Q = U * A * ΔT
- Q is the heat loss (W)
- U is the overall heat transfer coefficient (W/m².K)
- A is the surface area of the pipe (m²)
- ΔT is the temperature difference between the steam and the surrounding air (K)
First, let's calculate the surface area of the pipe. The circumference of the pipe can be calculated as:
C = π * diameter = 3.1416 * (3 in. * 0.0254 m/in.) = 0.2384 m
The surface area can then be calculated as:
A = 2 * π * r * L
- r is the radius of the pipe (m), which is half the diameter
- L is the length of the pipe (m)
Assuming a pipe length of 1 meter:
r = 0.5 * (3 in. * 0.0254 m/in.) = 0.0381 m
A = 2 * π * 0.0381 * 1 = 0.2393 m²
Now, we can calculate the overall heat transfer coefficient (U) using the convective heat transfer coefficient (h) and the thermal conductivities of the insulators:
U = 1 / (1 / h + δ1 / k1 + δ2 / k2)
- δ1 and δ2 are the thicknesses of insulator A and insulator B, respectively (m)
- k1 and k2 are the thermal conductivities of insulator A and insulator B, respectively (W/m.K)
Assuming δ1 = δ2 = 0.025 m (2.5 cm):
U = 1 / (1 / 15 + 0.025 / 0.04 + 0.025 / 0.20) = 4.245 W/m².K
Now, we can calculate the temperature difference (ΔT):
ΔT = Ts - Ta = 100 - 20 = 80 K
Finally, we can calculate the heat loss (Q) for both insulators:
Q_A = U * A * ΔT = 4.245 * 0.2393 * 80 = 812.3 W
Q_B = U * A * ΔT = 4.245 * 0.2393 * 80 = 812.3 W
Both insulators result in the same heat loss, which is 812.3 W. Therefore, in terms of minimizing heat loss, it doesn't matter which insulator is covered outside.
However, it's worth noting that insulator A has a lower thermal conductivity, which means it is a better insulator and can potentially provide better thermal performance in other aspects such as temperature gradients across the insulation.
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1. Create a Virtual Hard Drive a. In Disk Management, click Action in the menu bar and click Create VHD. Follow directions on screen to create the VHD, specifying its location on the hard drive and its size. You can make the size dynamically expanding. The VHD is listed as a Disk in the Disk Management window. b. Right-click the new disk and click Initialize Disk. Use the GPT/MBR partitioning system for the disk.
Answers
Click Create VHD under Action in Disk Management's menu bar. To build the VHD and set its position on the hard disk, follow the on-screen instructions.
The hard drive is what?The physical device that houses all of our digital stuff is a hard disk. Digital stuff that is kept on a hard drive includes your papers, photos, music, videos, applications, application selections, and operating system. There are internal and external hard drives.
What does a 1 TB hard drive cost?1,000 megabytes (GB) or one trillion bytes (TB) are equivalent (MB). Now let's contrast that with the actual storage devices that we utilize every day. internal Memory of storage is equivalent to around 16 (64 GB) Samsung Galaxy or iPhones when compared to the typical smartphone.
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The short-term demand for crude oil in Country A in 2008 can be approximated by q = f(p) = 2,144,309p^-0.05 , where p represents the price of crude oil in dollars per barrel and q represents the per capita consumption of crude oil. Calculate and interpret the elasticity of demand when the price is $79 per barrel. The elasticity of the demand for oil is ___ ?
Answers
The elasticity of demand for oil when the price is $79 per barrel is approximately -0.052.
The elasticity of demand measures the responsiveness of quantity demanded to changes in price. In this case, the elasticity of demand is calculated by taking the derivative of the demand function with respect to price, and then multiplying it by the ratio of price to quantity.
To calculate the elasticity at a specific price, we need to differentiate the demand function with respect to price, which gives us -0.05 * 2,144,309 * p^(-0.05 - 1). Simplifying this expression gives us -107,215.45 * p^(-1.05).
Next, we multiply this expression by the ratio of price to quantity. At a price of $79 per barrel, we substitute p = 79 into the expression and divide it by the quantity consumed. This gives us (-107,215.45 * 79^(-1.05)) / (2,144,309 * 79^(-0.05)). Simplifying further, we find the elasticity to be approximately -0.052.
Interpreting this elasticity value, we can say that a 1% increase in the price of crude oil would result in a approximately 0.052% decrease in per capita consumption of crude oil in Country A in 2008. Similarly, a 1% decrease in price would lead to a 0.052% increase in per capita consumption. This indicates that the demand for oil in Country A is relatively inelastic, meaning that changes in price have a proportionately smaller impact on the quantity demanded.
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A gas cylinder is connected to a manometer that contains water. The other end of the manometer is open to the atmosphere, which in Flagstaff is 79 kPa absolute. Draw a sketch of the problem and determine the absolute static pressure in the gas cylinder if the manometer is reading 13 in H2O. Assume the water in the manometer is at 20 °C
Answers
Answer: the absolute static pressure in the gas cylinder is 82.23596 kPa
Explanation:
Given that;
patm = 79 kPa, h = 13 in of H₂O,
A sketch of the problem is uploaded along this answer.
Now
pA = patm + 13 in of H₂O ( h × density × g )
pA= 79 + (13 × 0.0254 × 9.8 × 1000/1000)
pA = 82.23596 kPa
the absolute static pressure in the gas cylinder is 82.23596 kPa
What is the frequency heard by a person driving at 15 m/s toward a blowing factory whistle if the emitted frequency is 800. Hz and the speed of sound is 340. m/s
Answers
The frequency heard by a person driving at 15 m/s toward a blowing factory whistle, if the emitted frequency is 800 Hz and the speed of sound is 340 m/s, would be 850.67 Hz.
Lies in the Doppler effect, which is a change in frequency perceived by an observer due to the motion of the source emitting the waves. In this case, the observer (the person driving) is moving toward the source (the factory whistle) at a speed of 15 m/s, while the speed of sound is 340 m/s.
Therefore, the frequency heard by the person driving toward the blowing factory whistle would be 850.67 Hz.
Hi! I'd be happy to help you with your question. To find the frequency heard by a person driving toward a blowing factory whistle, we can use the Doppler effect formula.
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for the network of fig. 15.58, derive an expression for the steady-state input impedance and determine the frequency at which it has maximum amplitude.
Answers
For the given network in Figure 15.58, we need to derive an expression for the steady-state input impedance and determine the frequency at which it has the maximum amplitude. The steady-state input impedance is determined by analyzing the circuit components and their frequency-dependent behaviors.
To derive the expression for the steady-state input impedance, we need to analyze the components in the network and their impedance characteristics. The input impedance is typically calculated by considering the series and parallel combinations of resistors, capacitors, and inductors in the circuit. By examining the circuit in Figure 15.58, we can determine the impedance of each component at a given frequency. The impedance of a resistor is simply its resistance, while the impedance of a capacitor and an inductor is frequency-dependent, given by 1/(jωC) and jωL, respectively (where j represents the imaginary unit and ω is the angular frequency). Using the appropriate impedance values for each component, we can determine the overall impedance of the circuit. This involves solving for the equivalent impedance of series and parallel combinations of components. To find the frequency at which the input impedance has maximum amplitude, we need to evaluate the magnitude of the impedance expression at different frequencies. The frequency at which the magnitude is highest corresponds to the frequency with maximum amplitude. In conclusion, by analyzing the circuit components and their impedance characteristics, we can derive the expression for the steady-state input impedance of the network in Figure 15.58. Additionally, by evaluating the magnitude of the impedance expression at different frequencies, we can determine the frequency at which the input impedance has the maximum amplitude.
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Soru No 3
If you
Açık Öğretim Kurumlan Online Sınavı 300095
say
Bu cümlede boş
hangisi
Bu cümlede boş b/40
crijnilmelidir?
or
with someone in a conversation, you
cilindl3p4facvmyzzy2 on, you
yere seçeneklerden
hekle
indl 3p4jacymyzzxkm2ku2140
A) I'd exactly say the opposite
B) I am sorry for interrupting
C) You have a point there
ku2140
D) Never in a million years
Bu soruyu boş bırakmak istiyorum
p4facvmy
crimd13p4facy
Answers
Which three items below should a driver be able to identify under the hood of a car?
Answers
Answer:
Engine oil level.
Brake fluid.
Power steering fluid.
Wagons are assembled in a process with two resources. The first resource has a capacity of 15 wagons per hour. The capacity of the second resource is 7.9 wagons per hour. The first resource has 1 worker and the second resource has 5 workers. Demand for this process is 5.2 wagons per hour.
What is the average labor utilization (%)? Note: Do not round intermediate calculations. Round your answer to 1 decimal place.
Answers
The average labor utilization is approximately 16.7% (rounded to 1 decimal place).Therefore, the correct option is: 16.7.
The formula to calculate the average labor utilization (%) is:Average Labor Utilization = (Total Production Time / Total Labor Time) * 100First, let's calculate the total production time.Total Production Time = Demand / Production RateTotal Production Time = 5.2 / 7.9Total Production Time = 0.6582 hourNow, let's calculate the total labor time of the first resource.Total Labor Time of First Resource = Total Production TimeTotal Labor Time of First Resource = 0.6582 hourTotal Labor Time of Second Resource = Total Production Time * Number of WorkersTotal Labor Time of Second Resource = 0.6582 hour * 5Total Labor Time of Second Resource = 3.291 hourNow, let's calculate the total labor time.Total Labor Time = Total Labor Time of First Resource + Total Labor Time of Second ResourceTotal Labor Time = 0.6582 hour + 3.291 hourTotal Labor Time = 3.9492 hourNow, let's calculate the average labor utilization.Average Labor Utilization = (Total Production Time / Total Labor Time) * 100Average Labor Utilization = (0.6582 / 3.9492) * 100Average Labor Utilization = 16.666666666666668.
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When directed towards facility and basing, the best choice may be to place the engineering staff function under the _______.
Answers
When directed towards facility and basing, the best choice may be to place the engineering staff function under the facilities manager.
What is engineering?
Engineering is a profession that uses mathematics, science, technology, and problem-solving skills to design and create products, processes, and services that meet the needs of society. It encompasses a wide range of disciplines, including civil, mechanical, chemical, electrical, and software engineering. Engineers must have an understanding of the physical and mathematical principles that govern the construction and operation of systems, as well as the ability to think logically and creatively to develop solutions to complex problems. Engineering is essential in designing and constructing infrastructure, such as roads, bridges, and buildings, as well as in developing new products and technologies. The field of engineering also plays a crucial role in the protection of our environment by developing renewable energy sources and improving the efficiency of existing systems.
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Select the option below that contains the correct order or sequence of events. A) 1) Add host to subscription, 2) Use host as report source, 3) Scan hostB) 1) Use host as report source, 2) Add host to subscription, 3) Scan hostC) 1) Add host to subscription, 2) Scan host, 3) Use host as report sourceD) 1) Scan host, 2) Add host to subscription, 3) Use host as report source
Answers
The option that has the correct order or sequence of events are;
1) Scan host.
2) Add host to subscription.
3) Use host as report source.
What are host assets?Host assets are known to be a kind of IP addresses in a person's account. This type of assets is one that can be used as a kind of scan, map and also to report targets.
A person can view the hosts in their account by going the Assets panel to the Host Assets. One can add new hosts by the use of the New menu. The person can also only carry out actions like scanning, mapping and reporting on one's hosts.
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How is the law of conservation of matter best represented in a chemical reaction
Answers
Answer:
Umm.... because the spit that comes up of your mouth when you talk mixes with the air
Explanation:
The output S/N at thereceiver must be greater than 40 dB. The audio signal has zero mean, maximum amplitude of 1, power of ½ Wand bandwidth of 15 kHz. The power spectral density of white noise N0/2 = 10-10W/Hz and the power loss in the channel is 50 dB. Determine the transmit power required and the bandwidth needed.
Answers
Given that,
The output signal at the receiver must be greater than 40 dB.
Maximum amplitude = 1
Bandwidth = 15 kHz
The power spectral density of white noise is
\(\dfrac{N}{2}=10^{-10}\ W/Hz\)
Power loss in channel= 50 dB
Suppose, Using DSB modulation
We need to calculate the power required
Using formula of power
\(P_{L}_{dB}=10\log(P_{L})\)
Put the value into the formula
\(50=10\log(P_{L})\)
\(P_{L}=10^{5}\ W\)
For DSB modulation,
Figure of merit = 1
We need to calculate the input signal
Using formula of FOM
\(FOM=\dfrac{\dfrac{S_{o}}{N_{o}}}{\dfrac{S_{i}}{N_{i}}}\)
\(1=\dfrac{\dfrac{S_{o}}{N_{o}}}{\dfrac{S_{i}}{N_{i}}}\)
\(\dfrac{S_{i}}{N_{i}W}=\dfrac{S_{o}}{N_{o}}\)
Put the value into the formula
\(\dfrac{S_{i}}{2\times10^{-10}\times15\times10^{3}}<40\ dB\)
\(\dfrac{S_{i}}{30\times10^{-7}}<10^{4}\)
\(S_{i}<30\times10^{-3}\)
\(S_{i}=30\times10^{-3}\)
We need to calculate the transmit power
Using formula of power transmit
\(S_{i}=\dfrac{P_{t}}{P_{L}}\)
\(P_{t}=S_{i}\times P_{L}\)
Put the value into the formula
\(P_{t}=30\times10^{-3}\times10^{5}\)
\(P_{t}=3\ kW\)
We need to calculate the needed bandwidth
Using formula of bandwidth for DSB modulation
\(bandwidth=2W\)
Put the value into the formula
\(bandwidth =2\times15\)
\(bandwidth = 30\ kHz\)
Hence, The transmit power is 3 kW.
The needed bandwidth is 30 kHz.
performing the drawing-in maneuver or bracing can do what?
Answers
The drawing-in maneuver and bracing techniques are used in various exercises such as squats, deadlifts, and overhead presses, to maintain proper form and alignment. They are also helpful for people with weak or injured core muscles, as they can help improve core strength, stability, and function.
Performing the drawing-in maneuver or bracing can activate the muscles of the transversus abdominis, multifidus, and pelvic floor. This will help increase intra-abdominal pressure, which is essential in maintaining a stable spine and reducing the risk of lower back pain and injury.
The drawing-in maneuver or bracing is a technique used to activate the deep core muscles that surround and stabilize the spine. It is an essential exercise for preventing and managing lower back pain.
The drawing-in maneuver works by activating the transversus abdominis, which is the deepest layer of abdominal muscles that lies beneath the rectus abdominis, internal oblique, and external oblique muscles. This muscle plays a crucial role in stabilizing the spine and pelvis, and improving posture and balance.
The bracing technique, on the other hand, involves contracting all the muscles around the midsection, including the transversus abdominis, multifidus, and pelvic floor muscles. This technique increases intra-abdominal pressure, which stabilizes the spine and reduces the risk of injury to the lower back.
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At 120 KTAS, what is a good angle of bank to use to generate a level standard rate turn for instrument flight conditions
Answers
Answer:
The correct answer will be "18 degrees AOB".
Explanation:
The given value is:
KTAS = 120
For determining bank angles through standard rate switches, as we understand
⇒ \(10 \ percent \ of KTAS +\frac{1}{2} \ of \ the \ number\)
On substituting the given value of KTAS, we get
⇒ \(10 \ percent \ of 120+\frac{1}{2} \ of \ the \ number\)
⇒ \(12+6\)
⇒ \(18 \ degree \ angle \ of \ bank\)
The relationship between the temperature of a system and the total energy of the system depends on what factors?
Answers
The types, states, and concentrations of matter in a system affect the relationship between temperature and total energy.Energy naturally moves from hotter places or things into cooler ones.
What connection exists between heat energy and temperature?The main distinction between the two is that temperature is more interested in molecular kinetic energy than heat does with thermal energy.Temperature is indeed a property an object shows, whereas heat is the passage of thermal energy.
What determines the temperature?The heat transported to or from a material depend on three things, according to experiments: the change in temperature of the substance, its mass, and some physical characteristics associated to its phase.
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Consider a vapor compression system used for cooling a home and rejecting energy to the outdoor ambient. What will happen to the cooling COP as the temperature difference between the indoor air and the ambient air decreases
Answers
In a vapor compression system used for cooling a home and rejecting energy to the outdoor ambient, the cooling COP (Coefficient of Performance) will decrease as the temperature difference between the indoor air and the ambient air decreases.
The cooling COP is a measure of the cooling efficiency of the system, which is defined as the ratio of the amount of cooling provided to the amount of energy consumed by the compressor. When the temperature difference between the indoor air and the ambient air decreases, the compressor has to work harder to remove the same amount of heat from the indoor air. This results in a decrease in the cooling efficiency of the system and hence a decrease in the cooling COP.
For example, if the outdoor ambient temperature is very high and the indoor air temperature is much lower, the cooling COP will be high
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A gas has an initial volume o.25m^3, and absolute pressure 100kPa. Its initial temperature is 290k. The gas is compressed into a volume of o.O5m^3 during which its temperature rises to 405k. Calculate its final pressure using the formula . P1V1/T1=p2V2/t2
Answers
Answer:
698.3KpaExplanation:
Step one:
given data
V1=0.25m^3
T1=290k
P1=100kPa
V2=0.5m^2
T2=405k
P2=? final pressure
Step two:
The combined gas equation is given as
P1V1/T1=P2V2/T2
Substituting we have
(100*0.25)/290=P2*0.05/405
25/290=0.5P2/405
0.086=0.05P2/405
cross multiply
0.086*405=0.05P2
34.9=0.05P2
divide both sides by 0.05
P2=34.9/0.05
P2=698.3Kpa
Therefore the new pressure is 698.3Kpa when the gas is compressed
Water at 27oC is being pumped through a water supply system illustrated in the figure from a sump at
atmospheric pressure to a tank under a pressure of 60kPa. Galvanised steel pipe of 100mm diameter is
used throughout, 2.5m length on the suction side and 80m length on the discharge side. The following
fittings are used:
Suction side: 2 unions k=0.05 (screwed), 1 lift foot valve-k=10.0 (with strainer), 1 standard elbow k=0.9.
Delivery side: 1 transition (65-100mm) k=0.4, 1 glove valve k=12.5(half open), 16 unions k=0.05
(screwed), 2 standard elbows k=0.9, 1 gate valve k=0.2(fully open), 1 sudden enlargement k=1 (exit to
tank).
Determine the total system head for flow rates from 0 to 20l/s in steps of 5 l/s. Hence, plot the system
head curve. Assume a constant friction factor based upon a mean flow rate of 10l/s. The dynamic viscosity
of water at 27oC may be taken as 0.9x10-3Pa.s). The relative roughness is 0.0015.
Answers
To determine the total system head for flow rates from 0 to 20l/s in steps of 5 l/s, we need to calculate the head loss due to friction and fittings on both the suction and delivery sides.
First, we need to calculate the Reynolds number to determine the flow regime in the pipe. The Reynolds number is given by:
Re = (ρVD)/μ
Where:
ρ = density of water = 1000 kg/m3
V = flow velocity
D = diameter of pipe = 100 mm = 0.1 m
μ = dynamic viscosity of water at 27°C = 0.9x10-3 Pa.s
At a flow rate of 10 l/s, the flow velocity is given by:
V = Q/A = (10x10-3 m3/s)/(π(0.1/2)2) = 2.54 m/s
Therefore, the Reynolds number is given by:
Re = (1000x2.54x0.1)/0.9x10-3 = 282222
Since the Reynolds number is greater than 4000, the flow regime is turbulent.
Next, we need to calculate the friction factor using the Colebrook equation:
1/sqrt(f) = -2.0log((ε/D)/3.7 + 2.51/(Re*sqrt(f)))
Where:
ε/D = relative roughness = 0.0015/0.1 = 0.015
Solving this equation iteratively using a spreadsheet or calculator, we get a friction factor of 0.018.
Using this friction factor, we can now calculate the head loss due to friction on both the suction and delivery sides using the Darcy-Weisbach equation:
hf = f(L/D)(V^2/2g)
Where:
L = length of pipe
D = diameter of pipe
V = flow velocity
g = acceleration due to gravity = 9.81 m/s2
For the suction side, the length of the pipe is 2.5 m and the fittings have a total equivalent length (TEL) of:
TEL = 2(0.05) + 10.0 + 0.9 = 11.95
Therefore, the total length of the suction side is 2.5 + 11.95 = 14.45 m.
The head loss due to friction on the suction side is given by:
hfs = 0.018(14.45/0.1)(2.54^2/2x9.81) = 1.14 m
For the delivery side, the length of the pipe is 80 m and the fittings have a TEL of:
TEL = 0.4 + 12.5 + 16(0.05) + 2(0.9) + 0.2 + 1 = 15.15
Therefore, the total length of the delivery side is 80 + 15.15 = 95.15 m.
The head loss due to friction on the delivery side is given by:
hfd = 0.018(95.15/0.1)(2.54^2/2x9.81) = 5.96 m
The total system head is given by the sum of the head losses due to friction and fittings on both the suction and delivery sides, plus the static head difference between the sump and tank:
hsystem = hfs + hfd + (60 - 1) = 64.1 m
To plot the system head curve, we repeat these calculations for flow rates of 5, 10, 15, and 20 l/s, and plot the results on a graph. The x-axis represents the flow rate and the y-axis represents the system head. The resulting curve shows the relationship between the flow rate and system head for this water supply system.
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your vehicle's backup lights are red or amber and come on when you shift into reverse. true false
Answers
The statement that says your vehicle's backup lights are red or amber and come on when you shift into reverse is true.
What are reverse lights?Reverse lights are also known as backup lights. They are an important part of the vehicle's lighting system, which allows the driver to see what is behind the vehicle when backing up or reversing.
The lights are typically mounted at the rear of the vehicle and come on when the driver shifts into reverse. Back-up lights are a safety feature that aids drivers in seeing what's behind them when reversing. They make it easier for drivers to avoid hitting objects, other vehicles, or people when reversing.
Hence, The statement that says your vehicle's backup lights are red or amber and come on when you shift into reverse is true.
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Which of the following would be useful to the building of a skyscraper? (Select all that apply.)
steep grading
deep foundation
wide footing
large footprint
Answers
Answer:
steep grading
Explanation:
the farthest
1. AC is safer for welders to use in hazardous spaces because currents are even, generate less spatter residue, and
produce smoother, thinner welds.
Answers
Select the correct answer. Which statement best describes a hydrogen fuel cell? A This device uses bioethanol as an additive to power an automobile. B. O C. This device uses photovoltaic cells to capture solar energy and generate electrical energy from it. This device uses fossil fuels to generate heat energy that machines can then convert into mechanical energy. This device converts the chemical energy of hydrogen into electricity through a chemical reaction with oxygen or another oxidizing agent. O D. E. This device converts the kinetic energy of an electric turbine into electricity based on Faraday's law.
Answers
Answer:
Explanation:
The correct answer is "D. This device converts the chemical energy of hydrogen into electricity through a chemical reaction with oxygen or another oxidizing agent."
A talks about bio-ethanol fuel.
B is solar.
C is fossil.
E is electricity generation.
Answer:
Explanation:
ans is:
This device converts the chemical energy of hydrogen into electricity through a chemical reaction with oxygen or another oxidizing agent. O D
an employee is having trouble with a current project and needs help.
Answers
Answer:
What ! you are an Engineer and I am a High school why are You in my feed..!!