c agevalue and weightvalue are read from input. declare and assign pointer mydog with a new dog object. then, set mydog's age and weight to agevalue and weightvalue, respectively.
Answers
Following is the program using pointer we use the pointer concept to solve this
Program:
#include <iostream> using namespace std;
class Dog{
public: Dog();
void Print();
int age; int weight;
}; Dog::Dog()
{ age = 0; weight = 0;
} void Dog::Print()
{ cout<<"Dog's age: "<<age<<endl; cout<<"Dog's weight: "<<weight<<endl;
} int main()
{ int ageValue; int weightValue;
cin>>ageValue; cin>>weightValue; // declare Dog pointer with a new Dog Object
Dog*myDog= new Dog(); // now setting age, weight with ageValue & weightValue respectively
myDog->age = ageValue;
myDog->weight = weightValue;
myDog->Print();
return 0;
}
What is a pointer?
A pointer is a type of variable that holds as its value the memory address of another type of variable. The * operator creates a pointer variable, which points to a data type (like an int) of the same type.
Thus using a pointer concept the program gives the estimate output
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The Age and weight values are read from the input using c is
int agevalue;
int weightvalue;
struct Dog {
int age;
int weight;
};
struct Dog* mydog = malloc(sizeof(struct Dog));
mydog -> age = agevalue;
mydog -> weight = weightvalue;
What is input?
Input is the data that is entered into a computer system or other electronic device. It can be in the form of text, images, audio, video, or any other type of digital information. The output of the system is what the user receives as a result of the input.
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Related Questions
______________ is one of four characteristics of hazardous waste.
A) Elasticity
B) Toxicity
C) Sensitivity
D) Expandability
(This is for my Automotive class)
Answers
Answer:
My guess is toxicty from gas fumes. Hope this helps
Explanation:
One of the four characteristics of hazardous waste is Toxicity. That is option B.
What is hazardous waste?A hazardous waste is any material or substance that is capable of harming living organisms and making the environment dangerous for to live in.
The characteristics of a hazardous waste include:
Ignitability:something flammable.Corrosivity: something that can rust or decompose.Reactivity: something explosive.Toxicity: something poisonous.Therefore, one of the four characteristics of hazardous waste is Toxicity.
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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.
4. Identify, which two of the following statements are correct for flash and multi-stage distillation: Design is based on adiabatic assumption Multi-stage distillation without reflux is equivalent to a single stage flash operation [ The streams leaving the unit are in equilibrium □ Feed temperature is higher than the product temperature Overall mass balance gives the operating line
Answers
Multi-stage distillation without reflux is equivalent to a single-stage flash operation, and the streams leaving the unit are in equilibrium. These statements hold true for both flash and multi-stage distillation processes.
Distillation is a separation method used in various industries to separate components in a mixture based on their boiling points. It involves heating a feedstock and passing it through a series of distillation columns. In multi-stage distillation, the feedstock is introduced into a pre-flash column operating at lower pressure, causing volatile components to vaporize and rise. The vapor is then condensed and partially vaporized in subsequent columns, with separation occurring at each stage until desired separation levels are achieved.
In multi-stage distillation, the streams leaving the unit are in equilibrium, meaning the compositions of the vapor and liquid phases are balanced. This equilibrium is maintained throughout each stage of the process. Additionally, multi-stage distillation without reflux can be considered as a single-stage flash operation, where the design assumes adiabatic conditions and the overall mass balance determines the operating line. However, the feed temperature is typically higher than the product temperature in this process.
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.The act of spooling a print job helps free up what resource on the print server?
a. Paged memory space
b. Active memory utilization
c. CPU utilization
d. Hard drive storage
Answers
The act of spooling a print job helps free up paged memory space on the print server. The correct answer is (a) Paged memory space.
Spooling a print job is a process of sending the print job to a temporary file on the hard drive before it is sent to the printer. This helps free up paged memory space on the print server because the print job is not taking up memory while waiting to be printed. Spooling also allows multiple print jobs to be queued up and processed in the order they were received, which helps to prevent printer congestion and improves printing efficiency.
Option A is the correct answer because spooling a print job helps to free up paged memory space on the print server. Options B and C are not directly related to spooling print jobs, and option D is not entirely accurate because spooling print jobs actually uses hard drive storage temporarily before printing, but it ultimately helps to free up memory resources.
The correct answer is (a).
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Using the table below, draw the network diagram and answer the questions. 1. How many paths are in the network, and what are they? (1 mark) 2. What is the critical path and its duration? (1 mark) 3. What is the float on activity U? (1 mark) 4. What is the impact to the project if activity B takes three weeks longer than planned? (1 mark) Activity Predecessor Estimate in Weeks Start - 0 C Start 6 B Start 4 P Start 3 A C,B,P 7 U P 4 T A 2 R A 3 N U 6 End T,R,N 9 Question 2 Your group was tasked to produce a research manual and listed the activities that must be completed, and the time estimates for each activity as shown in the table below: Note: You are required to use the last non-zero digit of your group leader’s student ID number for A,B,C,D,E. (where relevant based on your group size. Crash value cannot be ‘0’. Thus use the next bigger non zero digit from your ID number. Activity Immediate Predecessor Time (weeks) Cost (RM) Normal Crash Normal Crash A - a *a-1 700 800 B - 2 or b *b-1 1200 1900 C A 8 or c *c-2 1600 2200 D B 5 or d *d-2 1500 2300 E C 6 or e *e-2 2000 2800 F C,D 6 5 800 1200 G E,F 2 1 500 1000 (a) Draw a project network diagram. (1 mark) (b) Find the critical path.(1 mark) (c) What is the normal expected project completion time? (1 mark) (d) What is the total project cost using the normal time? (1 mark) (e) If the project is to be completed 2 weeks faster, determine which activities to crash at a minimum cost. What additional cost is incurred? What is the total cost? (3 marks) Question 3 Diddy Corp would like to develop an order quantity and reorder policy that would minimize their total costs of their inventory of printers. The probability distribution for demand for ace drill on a daily basis is shown below. Demand 0 1 2 3 4 5
Answers
The number of paths in the network is six.
The paths are:
C - A - T - N - EndC - A - T - R - N - EndC - B - P - U - N - EndC - B - P - U - T - R - N - EndC - B - P - A - T - N - EndC - B - P - A - T - R - N - End
2. The critical path is C - A - T - N - End with a duration of 24 weeks.
3. The float on activity U is 1 week.
4. If activity B takes three weeks longer than planned, it will affect the duration of path 3 and the entire project. It will elongate the project duration to 29 weeks.
2. b) The critical path is A-C-E-G with a duration of 18 weeks.
(c) The normal expected project completion time is 18 weeks.
(d) The total project cost using normal time is RM 7600.
(e) To complete the project two weeks faster, activities C and E can be crashed for the minimum cost.
The additional cost incurred will be RM 600.
The total cost is RM 8200.
3 The inventory cost that will minimize the total cost of inventory is obtained using the formula,
TAC = IC + OC + HCS
Where TAC
= Total Annual CostIC = Inventory CostOC = Ordering CostHCS = Holding and Carrying Cost.
The probability distribution is shown below. Demand 0 1 2 3 4 5Probability 0.20 0.15 0.25 0.20 0.10 0.10
To determine the optimal order quantity and reorder policy that would minimize total cost,
the EOQ (Economic Order Quantity) model will be used.
The EOQ can be determined using the formula,
Q = √((2DCO)/CH')
Where Q = Economic Order Quantity
D = Demand'
C0 = Cost per order
H = Holding cost
C = IC per unit
Let’s assume the cost per unit, C = RM 500,
the holding cost, H = 0.2,
and demand, D = 3 units per day.
Hence,CO = RM 800 (C0 = Cost per order, which is the same as ordering cost)
Then,Q = √((2 x 3 x RM 800)/RM 100)Q = 24 units per order
Then, the reorder level can be determined using the formula,
ROL = d * LWhere L = Lead time
ROL = 3 x 5 = 15 units
The total annual cost can be determined by substituting the values into the formula,
TAC = IC + OC + HCS
where IC = 0.5 x RM 500
= RM 250OC
= (365/EOQ) x C0OC
= (365/24) x RM 800OC
= RM 12133.33HCS
= (Q/2) x H x dHCS
= (24/2) x 0.2 x 3HCS
= RM 7.20
TAC = RM 250 + RM 12133.33 + RM 7.20TAC = RM 12390.53
Hence, the order quantity that will minimize the total cost of inventory is 24 units.
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why is it necessary to apply a low voltage to the prumaet winding instead of the rated voltage when evaluating the current ratio of a tansformer
Answers
Applying rated voltage to the primary winding during current ratio testing might produce excessive current flow, overheating, and damage to the transformer. In order to assure precise and safe testing.
Why is the primary winding required to receive a low voltage?The winding might carry so much current that it would overheat and be damaged if you applied direct current at rated voltage (the rating would be for rms AC voltage).
What justifies using a high voltage on the primary side during a no load test?Because the wattmeter is attached to the primary side, this guarantees that the low range of metres can be utilised for this test (High voltage side). Because of this, the primary side is typically selected.
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Cathy works in a welding shop. While working one day, a pipe falls from scaffolding above and lands on her head, injuring her. Cathy complains to OSHA, but the company argues that because it has a "watch out for falling pipe" sign in the workplace that it gave fair warning. It also says that if Cathy wasn’t wearing a hardhat that she is responsible for her own injury. Which of the following is true?1. Common law rules could hold Cathy responsible for her own injury.2. Cathy’s employer may not be held liable for her injury if it fulfilled compliance and general duty requirements.3. OSHA rules can hold Cathy’s employer responsible for not maintaining a hazard-free workplace.4. More than one answer is correct.
Answers
Answer:1 common law
Explanation:
It also says that if Cathy wasn’t wearing a hardhat hat she is responsible for her own injury, more than one answer is correct.
What are OSHA rules?In this case, if Cathy's employer completes compliance and general duty requirements then the organization may not be held liable and again, the law can generally hold Cathy responsible for the injuries as she was not wearing the proper kits for such work.
According to OSHA, Cathy’s employer may not be held liable for her injury if it fulfilled compliance and general duty requirements.
You are entitled to a secure workplace. To stop workers from being murdered or suffering other types of harm at work, the Occupational Safety and Health Act of 1970 (OSH Act) was passed. According to the legislation, companies are required to give their workers safe working environments.
Therefore, more than one answer is correct.
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what is magnetization
Answers
Answer:described by direction and is either Axial or Diametric
Explanation:
Answer:
Magnetization is the density of magnetic dipole moments that are induced in a magnetic material when it is placed near a magnet.
If chestnut hair (E) is dominant over black hair (e), can two horses with black hair produce an offspring with chestnut hair? Explain your answer.
Answers
Answer:
No, the offspring of two black horses cannot have chestnut hair. Since the black hair allele is recessive, both parents have to be hz recessive and do not carry the dominant chestnut hair allele. The only allele the parents can pass back to their offspring is the black allele.
Explanation:
Edg. 2022
Answer: The offspring of two black horses cannot have chestnut hair. Since the black hair allele is recessive, both parents have to be his recessive and do not carry the dominant chestnut hair allele. The only allele the parents can pass back to their offspring is the black allele.
Explanation:
Given an initialized String variable message , and given a PrintWriter reference variable named output that references a PrintWriter object , write a statement that writes the string referenced by message to the file output streams to.
Given an initialized String variable message , and given a PrintWriter reference variable named output that references a PrintWriter object , write a statement that writes the string referenced by message to the file output streams to.
Answers
To write the string referenced by the variable message to the file output streams using a PrintWriter object referenced by output, you can use the println method.To write the string to the file output streams, you need to call the println method of the PrintWriter object.
The println method writes a string to the output stream and appends a line separator to it. Here's an example statement that accomplishes this:
output.println(message);
This statement calls the println method on the output object and passes the message string as an argument. The println method writes the string followed by a line separator to the output streams associated with the PrintWriter object. If you want to write the string without appending a line separator, you can use the print method instead:
output.print(message);
Both println and print methods allow you to write the string referenced by message to the file output streams using the PrintWriter object output.
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4. Employees are not responsible for thelr own safety whlle at work.
A) O True
B) O False
Answers
The statement "Employees are not responsible for their own safety while at work" is false because Employees most certainly are responsible.
What is Occupational safety?A multidisciplinary discipline dealing with the safety, health, and welfare of individuals at work is known as occupational safety and health, often known as occupational health and safety, occupational health, or occupational safety.
An environment that is safe and healthy for workers may minimize injury and sickness expenses, lower levels of absenteeism, boost output and quality, and improve employee morale. In other words, safety benefits the business.
Thus, the statement "Employees are not responsible for their own safety while at work" is false because Employees most certainly are responsible.
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what is the division of demand
Answers
In relation to mine planning and design define scheduling
Answers
Answer:
Scheduling is a process of create a structure that shows the way a schedule is organized before developing a complete and final schedule of a project.
Explanation:
This is the initial step in of developing a project schedule for a capital cost project. At this stage, the estimates for the project are done involving the various actions in the project. A lot of details are included in this schedule showing the activities that are to be performed and the constraints involved.
Calculate the maximum bit rate for each of the following Modulation and Coding Schemes (MCS) if the signaling bandwidth is 20MHz.
Answers
The maximum bit rate for each MCS depends on the specific modulation and coding scheme used.
What is the maximum bit rate for each Modulation and Coding Scheme (MCS) with a signaling bandwidth of 20MHz?To calculate the maximum bit rate for each Modulation and Coding Scheme (MCS) with a signaling bandwidth of 20MHz, we need to consider the modulation scheme and coding rate for each MCS.
MCS is typically used in wireless communication systems. The maximum bit rate depends on the number of bits per symbol (modulation order) and the coding rate (efficiency).
For example, if MCS 8 uses 256-QAM modulation and a coding rate of 3/4, the maximum bit rate can be calculated as follows: Bit rate = signaling bandwidth ˣ modulation order ˣ coding rate = 20MHz ˣ log2(256) ˣ (3/4) = 20MHz ˣ 8 ˣ (3/4) = 120Mbps.
By applying similar calculations for each MCS, we can determine the maximum bit rate for each specific modulation and coding combination.
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Which of the following items are typically irradiated in order to kill microbes?
A. Cured meats.
B. Human tissues such as heart valves and skin.
C. Operating room air.
D. Surgical gloves.
E. All of the choices are correct.
Answers
All of the above options are typically irradiated in order to kill microbes. Irradiation is a process that uses ionizing radiation to eliminate microorganisms and other pathogens that may be present on various surfaces.
Cured meats such as bacon, ham, and sausage are often irradiated to reduce the risk of bacterial contamination and increase shelf life. Human tissues like heart valves and skin that are used in medical procedures are also irradiated to eliminate any harmful microorganisms that may be present.
Operating room air can also be irradiated to reduce the spread of bacteria and other pathogens during surgical procedures. Surgical gloves can also be treated with irradiation to ensure they are free from harmful microbes.
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the term applied to the chemistry of the body
Answers
Answer:
Biochemistry
Explanation:
Hope this helps :)
Answer:
Biochemistry
Have an amazing day!
mechanical properties of organic materials
Answers
The mechanical properties of organic solids most relevant to deformable devices include the elastic modulus (usually obtained as the tensile or Young's modulus),(109) elastic range and yield point,(110) toughness,(111) and strain to fracture(31
3. In Question 2, taking actual 2009 sales of $48,000 as the forecast for 2010, what sales would you forecast for 2011, 2012 and 2013 using exponential smoothing and a weigh α based on actual values of (a) 0.4; (b) 0.8?
Answers
Using α = 0.4, the forecasted sales for 2011, 2012, and 2013 would all be $48,000, which is the same as the actual sales in 2009.
Using α = 0.8, the forecasted sales for 2011, 2012, and 2013 would also be $48,000.
In both cases, the forecasts for 2011, 2012, and 2013 remain the same as the actual sales in 2009 due to the zero difference between the actual and forecasted sales values.
To forecast sales for 2011, 2012, and 2013 using exponential smoothing, we need to apply the formula:
Forecast for the next period = Previous period's forecast + α * (Actual value - Previous period's forecast)
Given that the actual 2009 sales are $48,000 and are considered the forecast for 2010, we can calculate the forecasts for subsequent years using different values of α.
(a) For α = 0.4:
- Forecast for 2011 = $48,000 + 0.4 * ($48,000 - $48,000) = $48,000
- Forecast for 2012 = $48,000 + 0.4 * ($48,000 - $48,000) = $48,000
- Forecast for 2013 = $48,000 + 0.4 * ($48,000 - $48,000) = $48,000
Using α = 0.4, the forecasted sales for 2011, 2012, and 2013 would all be $48,000, which is the same as the actual sales in 2009.
(b) For α = 0.8:
- Forecast for 2011 = $48,000 + 0.8 * ($48,000 - $48,000) = $48,000
- Forecast for 2012 = $48,000 + 0.8 * ($48,000 - $48,000) = $48,000
- Forecast for 2013 = $48,000 + 0.8 * ($48,000 - $48,000) = $48,000
Using α = 0.8, the forecasted sales for 2011, 2012, and 2013 would also be $48,000.
In both cases, the forecasts for 2011, 2012, and 2013 remain the same as the actual sales in 2009 due to the zero difference between the actual and forecasted sales values.
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Technician A says that the cylinders should be bored and/or honed to match the size of the pistons to be used. Technician B says that bolt holes should be chamfered and cleaned with a thread chaser before assembly. Who is right
Answers
Answer:Both Technician A and Technician B are right.
Explanation: The cracks in an engine can be detected when the engines are thoroughly cleaned because the transmission vent is basically designed to vent hot air.
Also pressure testing can equally detect cracks easily. When you increase the pressure,you will notice leaks from the blocks or cylinder indicating a crack on them.
the voltage valve at which a zirconia O2S switches from rich to lean and lean to rich is
A) 0.5v (500mv)
B) 0.45v (450mv)
C) 0.25v (250mv)
D) 0.90v (900)
Answers
to check your prediction it is necessary to conduct an experiment, where you will account for an actual bicycle spoke undergoing an uniaxial non-zero mean tensile stress together with an alternating stress. on paper, design your own experiment, which should provide appropriate cyclic stress ranges resulting in fatigue failure. detail the geometry of the sample you intend to use, how it would be mounted on the instron machine, and how the machine would be set up and operated. this is an open-ended exercise, and there is no single correct answer. in designing the experiment, feel free to choose from various functionalities and limitations of the instron machine you have seen over your eight weeks of experience operating it. provide all experimental parameters (instron settings) including speed. also estimate how long your test would run given your estimated fatigue life found in the analysis part above.
Answers
Design is evaluated for fatigue strength or endurance strength using Goodman criteria. When compared to the general assumed endurance stress of steel, 0.5 ultimate strength, the design was found to be safe. The number of fatigue failure cycles was calculated using the Basquin's equation.
What is stress?Stress is a force per unit area within materials that results from externally applied forces, uneven heating, or permanent deformation and allows for accurate description and prediction of elastic, plastic, and fluid behavior in physical sciences and engineering. A stress is defined as the product of a force divided by its area.
There are several types of stress. Normal stress is caused by forces perpendicular to a material's cross-sectional area, whereas shear stress is caused by forces parallel to and within the plane of the cross-sectional area.
Tensile stress refers to the normal stress caused by tension. When the two forces are reversed, the normal stress is known as compressive stress.
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All of these are part of the seat belt assembly EXCEPT the:
O latch plate
O D-ring
O retractor.
O cushion
Answers
Explanation: All parts going together to form a seat belt except the cushion
Engineering work in the industry requires the application of mathematical theory to solve technical problems through analysis and evaluation. Besides being able to solve technical problems, what is the secondary most important job requirement that an engineer must have in order to compile all data related to that work and communicate it with the customer or other engineering organizations? Elaborate on this aspect of engineering that is as important as technical problem solving
Answers
Answer:
nice info
Explanation:
why is ongoing safety training important
Answers
Answer:
Keeps workers interested and motivated, helping reduce dangerous behavior and eliminate hazardous situations
Explanation:
Frequent hands-on training and practice drives home the message that safety is a critical part of any work site. Safety should always be a top concern for every company and organization.
Two technicians are discussing engine coolant temperature (ECT) sensor diagnosis. Technician A says that the correct function of an ECT sensor depends on having a properly filled cooling system. Technician B says that the voltage measured on the ECT signal wire should be low when the engine is cold and high when the engine is hot. Who is correct
Answers
The correct answer is that both technician A and technician B are correct. Let's explore why both of them are correct.Technician A is correct in saying that a properly filled cooling system is necessary for the correct function of an ECT sensor.
When the engine coolant is low, the ECT sensor may not have enough coolant flowing around it to read the temperature accurately. If the cooling system is not filled to the proper level, the ECT sensor reading could be affected. So, Technician A is correct.Technician B is correct in saying that the voltage measured on the ECT signal wire should be low when the engine is cold and high when the engine is hot.
When the engine is cold, the voltage measured on the ECT signal wire will be low because the resistance in the sensor is high. As the engine warms up, the resistance in the ECT sensor decreases, causing the voltage on the signal wire to increase. The voltage measured on the ECT signal wire should be proportional to the engine temperature, so Technician B is also correct.In conclusion, both Technician A and Technician B are correct in their statements.
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5-9. A new six-speed automatic transmission
for automobiles offers an estimated 4% improvement
in fuel economy compared to traditional fourspeed
transmissions in front-wheel drive cars. If a
four-speed transmission car averages 30 miles per
gallon and gasoline costs $4.00 per gallon, how much
extra can a motorist pay for a fuel-efficient six-speed
transmission? Assume that the car will be driven for
120,000 miles over its lifetime of 10 years. The motorist
can earn 6% per year on investments. (5.3)
Answers
If a four-speed transmission car averages 30 miles per gallon and gasoline costs $4.00 per gallon, the maximum amount that should be paid for a fuel-efficient six-speed transmission is $453.
What is the explanation for the above results?We are given the following:
Total Fuel Cost when using traditional transmission = Miles Per Year / Miles Per Gallon x Per Gallon Cost
= Miles/year
= 120000 / 10 = 12,000 miles
Hence the Total Fuel Cost = 12000/30 x 4
= $1,600
With 6 speed , miles per gallon = 30 x (1+ 0.04) = 30* 1.04 = 31.20 MPG
Hence the reviewed Cost = 12000 / 31.20 * 4 = $1,538.50
This means that Yearly Savings in cost = 1,600 - 1538.50
= $61.50 per year
Hence, every year we save $61.50
Therefore, the maximum amount that will be paid extra is the present value of all the savings where n =10 and i = 6%
So, PVIFA (n=10 , i=6%) = 7.3601
So Present Value of Cash Flows = 61.50 x 7.3601 = 452.64615
\(\approx\) $ 453
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Air at 311 K is flowing through a packed bed of spheres having a diameter of 12.7 mm. the void fraction ε of the bed is 0.38 and the bed has a diameter of 0.61 m and a height of 2.44 m. the air enters the bed at 1.1 atm abs at the rate of 0.358 kg/s. calculate the pressure drop of the air in the packed bed column. The average molecular weight of air is 29. Ans: 005 x10 Pa
Answers
Given information: Air temperature at inlet, T1 = 311 KcVoid fraction, ε = 0.38Bed diameter, d = 0.61 mBed height, H = 2.44 mInlet pressure, P1 = 1.1 atm absAir mass flow rate,
Calculation of Ergun's ConstantsThe Ergun equation is expressed as,∆P/L = [(150 × (1 - ε)² × μ / d³) + (1.75 × (1 - ε) / ε³) × ρ × V1² / d](Where, L is the length of the bed.)Substituting the values of constants,∆P/L = [(150 × 0.38² × 1.898 × 10⁻⁵ / (0.0127)³) + (1.75 × (0.38) / (0.62⁻³)) × 84.378 × (17.448)² / (0.0127)]∆P/L = 848.83 Pa/mPressure drop through the bed,∆P = (∆P/L) × L = 848.83 × 2.44 = 2071.17 Pa= 0.207 × 10⁵ Pa (approx.)
The first step is to calculate the air's velocity through the bed. The packed bed is made up of spheres with a diameter of 12.7 mm, with a void fraction of 0.38. The packed bed's diameter and height are 0.61 m and 2.44 m, respectively. The air enters the bed at a pressure of 1.1 atm abs and a mass flow rate of 0.358 kg/s. The molecular weight of air is 29.
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If sin 0-cos 0 = -1/3, what is the value of sin 20?
Answers
Sin 20 degrees has a value of 0.3420201. Sin (20° /180°), often known as sin (/9) or sin 20 degrees, is expressed in radians (0.349065. . .). With the use of examples, we will go over how to calculate sin 20 degrees in this post.
What does Sin 20 Degrees Mean?Sin 20 degrees has a numeric value of 0.342020143. Sin 20 degrees can also be written as the angle (20 degrees equivalent )'s in radians (0.34906 . . .).Using the degree to radian conversion, we can determine that 20 degrees is equal to 20° (pi/180°) and that rad = /9 or 0.3490.Sin 20° is equal to sin(0.3490) = 0.3420201.Explanation of Sin 20 Degrees: The angle 20° is between 0° and 90° for sin 20 degrees (First Quadrant). Sin 20° value = 0.3420201 because sine function is positive in the first quadrant.Sine is a periodic function, therefore we may write sin 20° as sin(20° + n 360°), where n Z. Sine 20° also equals sin 380°, sin 740°, and so on.Note: Because sine is an odd function, sin(-20°) equals -sin(20°).To Learn more about Sin 20 refer to :
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A trapezoidal section has a 5.0-ft bed width, 2.5-ft depth, and 1:1 side slope. Evaluate its geometric elements (Area, water depth, wetted perimeter, top width, hydraulic radius, and hydraulic depth).
Answers
Answer:
a) 18.75 ft^2
b) 2.5 ft
c) 12.07 ft
d) 10 ft
e) 1.553 ft
f) 1.875 ft
Explanation:
Given data :
5.0-ft bed width, ( b )
2.5-ft depth ( y )
1 : 1 side slope
Evaluate
a) Area of trapezoidal section
A = by + my^2
we assume m = 1
A = [5 + (1 * 2.5 ) ] *2.5
= ( 7.5 ) 2.5 = 18.75 ft^2
b) Calculate water depth
water depth = 2.5 ft
c) Calculate wetted perimeter
P = b + 2y √ 1 + m^2
= 5 + (2.5*2) √ 1 + 1 ^2 = 12.07 ft
d) calculate top width
T = b + 2my
= 5 + 2 ( 1 * 2.5 ) = 10 ft
e) calculate hydraulic radius
R = A / P = 18.75 / 12.07
= 1.553 ft
f) calculate hydraulic depth
D = A / T = 18.75 / 10 = 1.875 ft
What are the 3 elements that must be present for fire exist?
Answers
The three elements necessary for fire to exist are heat, fuel, and oxygen.
The three elements that must be present for fire to exist are:
Heat: Fire requires an initial heat source to start the combustion process. This heat can be provided by a flame, a spark, friction, or any other source capable of raising the temperature of the fuel to its ignition point.
Fuel: Fire needs a fuel source to sustain the combustion.
Fuel can be any combustible material such as wood, paper, gas, oil, or even certain metals.
The fuel provides the necessary chemical components that can undergo combustion and release energy in the form of heat and light.
Oxygen: Fire requires an adequate supply of oxygen to support the combustion process.
Oxygen in the air reacts with the fuel, enabling it to burn.
The presence of oxygen allows for the chemical reaction known as oxidation, which releases heat and produces flames.
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