The oxide layer that forms on aluminum had a much higher melting point than the aluminum to be welded on and _

Answer:

σ =5.39Mpa

Explanation:

step one:

The flexure strength is defined as the tendency with which unreinforced concrete yield to bending forces

Flexural strength test Flexural strength is calculated using the equation:

σ = FL/ (bd^2 )----------1

Where

σ = Flexural strength of concrete in Mpa

F= Failure load (in N).

L= Effective span of the beam

b= Breadth of the beam

step two:

Given data

F=40.45 kN= 40450N

b=0.15m

d=0.15m

L=0.45m

step three:

substituting into the expression we have

σ = 40450*0.45/ (0.15*0.15^2 )

σ =18202.5/ (0.15*0.15^2 )

σ =18202.5/ (0.15*0.0225 )

σ =18202.5/0.003375

σ =5393333.3

σ =5393333.3/1000000

σ =5.39Mpa

Therefore the flexure strength of the concrete is 5.39Mpa

In conclusion, when the bdf is increased from 1 to 3, the peak discharge is tripled, resulting in a 200% increase relative to the bdf of 3.

The peak discharge of a watershed is a measure of the maximum amount of water that flows through it in a given time. In this case, we have a 20.7-mi2 watershed with a rural 25-year peak discharge of 2,420 ft3/s.
To understand the effect of the bdf (base discharge factor) when increasing from 1 to 3 on the peak discharge, we need to consider that the bdf is a multiplier that affects the peak discharge.
When the bdf is increased from 1 to 3, it means that the peak discharge will be multiplied by 3. So, if the peak discharge with a bdf of 1 is 2,420 ft3/s, then the peak discharge with a bdf of 3 would be 3 times that, which is 7,260 ft3/s.
To calculate the percent change relative to the bdf of 3, we need to compare the difference between the two values. The percent change formula is:
Percent Change = (New Value - Old Value) / Old Value * 100
In this case, the new value is 7,260 ft3/s (peak discharge with a bdf of 3) and the old value is 2,420 ft3/s (peak discharge with a bdf of 1). Plugging these values into the formula, we get:
Percent Change = (7,260 - 2,420) / 2,420 * 100
Simplifying the equation, we have:
Percent Change = 4,840 / 2,420 * 100
Percent Change = 200%
Therefore, the percent change relative to the bdf of 3 is 200%.
In conclusion, when the bdf is increased from 1 to 3, the peak discharge is tripled, resulting in a 200% increase relative to the bdf of 3.

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US import oil because it is cheaper to import oil than to produce it

Importation is a way of bringing in goods and services from neighbouring country into your country.

Countries import because it helps them to supply high cost and scarce resources to its market with products from other countries at a very cheap rate.

Hence we can conclude that US import oil because it is cheaper to import oil than to produce it.

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Answer:

because it is cheaper to import oil than to produce it

Explanation:

d on edge2023

Answer:

Protecting yourself.

Explanation:

you didn't include answer choices but from the text I would assume remembering to do these things would be actively protecting yourself.

Primitive transportation and storage systems that make local distribution ineffective if not impossible, the lack of clean water, and the lack of effective sewer systems are all examples of this type of barrier: physical and environment.

Transportation can be defined as a process that involves the movement of humans, products, resources such as water, and other physical things from one geographical area to another, especially through various means (forms) such as:

A barrier can be defined as any form of obstacle, impediment or hindrance which makes it impossible to perform an action, function or task in a timely manner.

In this context, we can reasonably infer and logically deduce that all of the aforementioned barriers such as lack of clean water and effective sewer systems, primitive transportation and storage systems are all examples of a physical and environment barrier.

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Answer: A function returns a value and a procedure just executes commands.

Explanation:

Answer:

c - returns a value.

Explanation:

on edge pls mark brainiest

Water-cooled condensers are cleaned with brushes or chemicals, depending on whether some water-cooled condensers accumulate scale while others do not. The correct option is A. Some water-cooled condensers will accumulate scale while others do not.

A water-cooled condenser is a refrigeration component that is responsible for removing heat from the refrigerant vapor. The heat exchanger, which is made up of several small tubes, is located in a water-cooled condenser.

The refrigerant vapor inside the tubes releases heat, which is absorbed by the water flowing over the tubes' exterior. As a result, the refrigerant vapor condenses and becomes a liquid.

So, the correct answer is A

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Answer:

  Research the company

Explanation:

It is a good idea to find out information about the company you are interviewing. Among other things, this will help you decide if you actually want to work for that company.

Telling your current boss can be risky to your job. A new outfit may be helpful for certain positions--especially those where manner of dress is important. Finishing school may or may not be an important requirement for the position you're seeking. Your company research will tell you.

Researching the company is one of the most important steps to take.

A range of values that, with a particular level of confidence, is likely to encompass a population value is defined as a confidence interval.

An interval of assurance is "a set of values that, with a particular level of certainty, includes the population value. When a population mean is between an upper and lower interval, it is frequently stated as a percentage ". Data near the mean are more likely to occur than data distant from the mean, according to the normal distribution, which is a probability distribution that is symmetric around the mean. display the sample mean. populace average indicates the fictitious population's mean deviation. N stands for the sample size (variable of interest). Confidence equals 0.98, or 98%. Me=0.07 is the error rate in this instance.

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When technician a says that variable valve timing allows the engine’s piston displacement to be increased or decreased, and technician b says that in-block cams usually include variable valve timing, then both of them are correct.

In an engine, a variable valve timing allows the engine’s piston displacement to increased or decreased to provide better operating conditions to engine. The reason is if the engine piston displacement is increases or decreases it allows the air to the engine which can increase the RPM of the engine.

In an engine in which the block cam is used, the variable valve timing is present. The reason is the timing gap provided by the cam to the valves is variable.

Here, the technician A says variable valve timing allows the engine’s piston displacement to increased or decreased and technician B says that in block cams usually include variable valve timing. So, both technician A and B are correct.

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In any mechanical project, calculating the measurements of the equipment is an essential task.

As a result, it is paramount to reference the numerical details outlined in either the drawings or specifications related to that endeavor.

Fundamentally, these documents comprise height, width, and length. If precise dimensions are not available, collaborating with mechanical engineers or equipment manufacturers could be beneficial.

Moreover, guarantee that the measurements harmonize with the conception and capacity of the project to keep away from probable superfluous installation or usefulness snags.

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To apply a value filter to the service field that displays the top 2 items by annual sales, follow these steps: Click on the dropdown arrow in the header of the "Service" column. Select "Value Filters" from the list. Choose "Top 10" filter option.
In the filter dialog box, change the number "10" to "2" to display the top 2 items. Ensure that the filter is set to "Items" and the criteria is "by Annual Sales". Click "OK" to apply the filter.

1. Open the dataset in a spreadsheet program such as Excel.
2. Select the column that contains the service field.
3. Click on the "Data" tab in the top menu and select "Filter".
4. Click on the filter arrow in the service field column header and select "Filter by Value".
5. In the filter dialog box, select "Top 10" in the "Filter Type" drop-down menu.
6. In the "Top 10" dialog box, enter "2" in the "Top" field.
7. Select the "Annual Sales" column as the field to sort by and choose "Descending" as the sort order.
8. Click "OK" to apply the filter.

This will display the top 2 items in the service field based on their annual sales.

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Answer:

C++ and Python

Explanation:

C++ and Python

Answer:

Sheet metal forming dates back to the days of the blacksmith who used a hammer and hot oven to mold metal into the desired form. Today’s aircraft technician relies on a wide variety of powered and hand-operated tools to precisely bend and fold sheet metal to achieve the perfect shape. Forming tools include straight line machines, such as the bar folder and press brake, as well as rotary machines, such as the slip roll former. Forming sheet metal requires a variety of tools and equipment (both powered and manual), such as the piccolo former, shrinking and stretching tools, form blocks, and specialized hammers and mallets. [Figure 4-55]

Answer:

Prokaryotic cell

Explanation:

Answer:

<:

Explanation:

Answer:

d

Explanation:

The family should accept a minimum of Kshs.42,250,000.00 to avoid incurring a loss.

To obtain the total cost, the expenses for the land, trees and upkeep are summed up and subsequently reduced by 6. 5% using a discount rate.

Hence, it can be seen that a forced acquisition appraisal primarily focuses on three key factors: the land's market value, the expenses involved in replacing the property, and the potential harm caused to the owner's belongings.

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According to the Tuckman model, the stage they are in is norming stage. The correct option is b.

Bruce Tuckman, a psychologist, originally put forth Tuckman's idea in 1965. Teams would go through five stages of development, according to the document: forming, storming, norming, performing, and adjourning.

The norming stage is the third one in team development after forming and storming stages. Members become more focused on the team's objectives and exhibit a rise in productivity throughout the Norming stage, both in their individual and group work.

Therefore, the correct option is b-norming.

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The question is incomplete. Your most probably complete question is given below:

a-storming

b-norming

c-swarming

d-performing

Answer:

mechanical engineer is the best answer

Answer:

It only detects errors if an odd number of bit flips have occurred.

Explanation:

Parity is a measure of how even or odd a string of digits (for example, a string of binary units is).  It is obtained by calculating the value of all the bits. Parity is used in error detection. A parity error is detected when the parity and the odd number of bits are incorrectly propagated.

A problem commonly associated with the parity bits is that they can only detect an odd number of bit errors. This means that if a digit is corrupted in the even binary digits there would be an incorrect detection of errors.

Answer:

See explanation.

Explanation:

Since no figure was given I solved a problem that was similar to the one you described that I worked in my mechanics of materials class. The method should be very similar for your figure. See attached image for my work.

If it is subjected to the couple determine the maximum shear stress in regions AC and CB of the shaft. G st = 75 GPa. Than the answer will be 52Mpa.

We need to perform a two step process to obtain the maximum shear stress on the shaft. For the solid shaft,

P=2×pi×N×T/60 or T=60×p/2×pi×N

Where P=power transmitted by the shaft=50×10³W

N=rotation speed of the shaft in rpm=730rpm

Pi=3.142

T is the twisting moment

By substituting the values for pi, N and P, we get

T=654Nm or 654×10³Nmm

Also, T=pi×rho×d³/16 or rho=16×T/pi×d³

Where rho=maximum shear stress

T = twisting moment=654×10³Nmm

d= diameter of shaft= 40mm

By substituting T, pi and d

Rho=52Mpa

b. For a hollow shaft, the value for rho is unknown

T=pi×rho(do⁴-di⁴/do)/16

Rho=T×16×do/pi×(do⁴-di⁴)

Where

T= twisting moment=654×10³Nmm gotten above

do=outside shaft diawter=40mm

di= inside shaft diameter =30mm

Pi=3.142

Substituting values for pi, do, di and T.

Rho=76Mpa

Therefore, If it is subjected to the couple determine the maximum shear stress in regions AC and CB of the shaft. G st = 75 GPa. Than the answer will be 52Mpa.

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The statement "In a regular pyramid, the slant height is always longer than a lateral edge of the pyramid" is false.

In a regular pyramid, the slant height refers to the distance from the apex (top) of the pyramid to any point on the lateral face, measured along the slanted surface. A lateral edge, on the other hand, refers to the length of an edge that connects the apex to a vertex of the base.

In a regular pyramid, the slant height and the lateral edge are typically not equal to each other. The slant height is generally longer than a lateral edge. This can be understood by considering the shape of a regular pyramid, where the slant height forms a diagonal along the lateral face, while the lateral edge is a straight line connecting the apex and a vertex of the base.

However, it is important to note that the specific lengths of the slant height and lateral edge depend on the dimensions of the pyramid, such as the base size and the height. The relationship between the slant height and lateral edge can vary depending on the specific measurements of the regular pyramid.

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Answer: See explanation

Explanation:

Paleobotany is simply referred to as the branch of botany that deals with the study of the fossils of plants and the identification of the remains of plants.

Paleobotany lays emphasis on the fossils of plant fossils, such as fungi, algae, ferns, etc. It should be noted that paleobotany is vital as it helps scientists understand the evolution of plants. This is vital in determining the classes to which certain plants belongs.

The two ways through which a computer model is likely to be used by an engineer in order to help refine a design are as follows:

Thus, the correct options for this question are A and D.

A Computer model may be defined as a type of computer program that significantly runs on a computer that typically develops a model, or simulation, of a real-world feature, phenomenon, or any other event.

According to the context of this question, an engineer would try to perform the ways in order to support the refining of the design through the help of calculating the possible costs of building a design and the run simulations to test a problem with the design.

Therefore, the correct options for this question are A and D.

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Answer:

In I-Q modulation technique, many symbols or signals with different amplitude and phase are generated. What is the map of all of the symbols called:____.

d. constellation diagram.

Explanation:

A constellation diagram is a representation of all the possible symbols that a system can transmit.  It shows these as a collection of points on the map.  For a signal modulated by a digital modulation scheme, the constellation diagram is used to display both the ideal (reference) signal and the actual measured signal on the same plot.  Modulation simply means the process of converting data into electrical signals so that they are optimized for transmission.

Answer:

True.

Explanation:

The compressibility of a fluid can be defined as a measure of the change in volume (density) with respect to the amount of pressure applied to the fluid. Thus, as the pressure of a compressible fluid increases, both its viscosity and density increases.

Some examples of compressible fluids are vapors, gases, air etc.

Additionally, the compressibility of fluids plays a significant role in the field of science such as in aerodynamics, fluid mechanics, thermodynamics etc.

Viscosity can be defined as a quantity expressing the magnitude of internal friction that restricts the ease of flow between parallel layers at some distance apart having unit speed relative to each other.

These properties of fluids, including viscosity and compressibility are usually being studied by engineers such as civil engineers, in order to test the efficiency of systems under given conditions.

Answer:

true

Explanation:

edge

To determine the highest gain available under the given conditions, we need to consider the bandwidth requirement and the 3-dB frequency of the circuit.

The 3-dB frequency represents the point at which the gain drops by 3 dB (approximately 70.7% of the maximum gain). In a noninverting op-amp circuit, the 3-dB frequency is given by the formula:

f = 1 / (2πRC)

where f is the 3-dB frequency and RC is the product of the resistor (R) and capacitor (C) values in the feedback network.

Given that the 3-dB frequency is 15 kHz, we can rearrange the formula to solve for RC:

RC = 1 / (2πf) = 1 / (2π * 15,000 Hz) = 1.06 × 10^(-5) s

To achieve a bandwidth of 32 kHz, we need to set the 3-dB frequency to half of the bandwidth. Therefore, the new RC value is:

RC = 1 / (2π * 16,000 Hz) = 9.95 × 10^(-6) s

Now, to calculate the highest gain available, we can rearrange the formula for the 3-dB frequency:

f = 1 / (2πRC)

and solve for the gain (A):

A = 1 + (Rf / Rin)

where Rf is the feedback resistor and Rin is the input resistor.

Rearranging the formula for gain:

Rf / Rin = A - 1

Since we want to find the highest gain, we want Rf / Rin to be as large as possible. This can be achieved by setting Rin to a very small value (close to 0) while keeping Rf relatively large.

Therefore, the highest gain available under these conditions can be obtained by using a feedback resistor (Rf) that is much larger than the input resistor (Rin).

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Answer:

Clay bricks are manufactured by mining and clay moulded blocks. There are 20,000 brick klins in Pakistan.

Explanation:

In Pakistan, the clay bricks are manufactured by mining and baking the clay moulded blocks in brick kilns. According to an estimate, the baking process emits about  1.4 pounds of carbon per brick made, but in Pakistan, because the systems are outdated, brick kilns are used, which is producing more than the average amount of the pollution.

There are about 20,000 brick kilns in Pakistan. The traditional brick production in Pakistan is consists of hand-made bricks which are first baked in Fixed Chimney Bull's Trench Kilns (FCBTK), this is the most widely used brick firing technology in South Asia.