T/F: "pretend ptr is a pointer of struct. name is a member of the structure
are these two statements equivalent
ptr -> name
( *ptr ).name"

Answer:

Explained below

Explanation:

Perfect Elastic Plastic in steel design is simply a method whereby the structural members are selected using the criteria of the overall ultimate capacity of the system. However, when safety is considered, the applied loads are usually increased by factors of safety as prescribed in the relevant steel design codes. Therefore, this model of design is just based on the yield capacity of the steel.

When the blower control is set on "HIGH" the blower motor receives full

battery voltage through a high-speed resistor.

A resistor is a device that provides electrical resistance in a circuit. A

device contains different resistors which regulates the amount of current

flowing through it.

This permits the regulation of the blower which have various speed ranges

available. The high-speed resistor is responsible for receiving the voltage

in a blower when the control is  set on "HIGH".

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Jayesh's company is an external marketing agency.

They work closely with Celetron to promote and advertise their products, but they do not take ownership or possession of the goods. Instead, they serve as an extension of Celetron's marketing department, handling various marketing functions such as market research, advertising campaigns, branding, and customer engagement. By outsourcing their marketing activities to an external agency, Celetron can leverage specialized expertise and resources to effectively reach their target audience and drive sales.

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A. The amount of coal consumed during a 24-hour period is 3,441.36 kg

B. The rate of air flowing through the furnace is 1,730.28 kg/hr

To determine the amount of coal consumed during a 24-hour period, we need to first calculate the power plant's fuel consumption rate in kg/hr. We can do this by dividing the power plant's net power output by its heat rate and the heating value of the coal:

Fuel consumption rate = (300 MWe) / (10,663 Btu/kWh * 12,040 Btu/lbm) = 0.318 lbm/MWh

Since 1 pound of coal is equal to 0.45359237 kilograms, the fuel consumption rate in kg/hr is:

Fuel consumption rate = 0.318 lbm/MWh * 1,000 MWh/hr * 0.45359237 kg/lbm = 144.19 kg/hr

Therefore, the amount of coal consumed in a 24-hour period is:

Coal consumed = 144.19 kg/hr * 24 hr = 3,441.36 kg

To determine the rate of air flowing through the furnace, we can use the actual gravimetric air-to-fuel ratio of 12 kg air/kg fuel. The rate of air flow through the furnace is equal to the fuel consumption rate multiplied by the air-to-fuel ratio:

Air flow rate = 144.19 kg/hr * 12 kg air/kg fuel = 1,730.28 kg/hr

This is the rate of air flowing through the furnace in kilograms per hour.

Therefore, the correct answer is as given above

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The complete question goes thus:

A coal-burning power plant produces a net power of 300 MWe with a Heat Rate of 10,663. The heating value of the coal is 12,040 Btu/lbm. The actual gravimetric air-fuel ratio in the furnace is calculated to be 12 kg air/kg fuel. Determine (a) the amount of coal consumed during a 24-hour period and (b) the rate of air flowing through the furnace

Prefix Symbol Multiplier Exponential

yotta Y 1,000,000,000,000,000,000,000,000 1024

zetta Z 1,000,000,000,000,000,000,000 1021

exa E 1,000,000,000,000,000,000 1018

peta P 1,000,000,000,000,000 1015

tera T 1,000,000,000,000 1012

giga G 1,000,000,000 109

mega M 1,000,000 106

kilo k 1,000 103

hecto h 100 102

deca da 10 101

1 100

deci d 0.1 10¯1

centi c 0.01 10¯2

milli m 0.001 10¯3

micro µ 0.000001 10¯6

nano n 0.000000001 10¯9

pico p 0.000000000001 10¯12

femto f 0.000000000000001 10¯15

atto a 0.000000000000000001 10¯18

zepto z 0.000000000000000000001 10¯21

yocto y 0.000000000000000000000001 10¯24

The probability that he will get a parking ticket given that he has to park in a no-parking zone is 0.3.

The Probability simply means the chance that a particular thing or event will happen. It is the occurence of likely events. It is simply the area of mathematics that deals with the numerical estimates of the chance that an event will occur or that a particular statement is true.

In this case, the probability of an event us usually represented as a number between 0 and 1. In this case, 0 denotes the impossibility of the event and 1 represents certainty.

The probability that Jay parks in a no-parking zone and gets a parking ticket is 0.06,

and the probability that Jay cannot find a legal parking space and has to park in the noparking zone is 0.20.

The probability that he will get a parking ticket given that he has to park in a no-parking zone will be:

= 0.06 / 0.20

= 0.3

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The sum_range argument (C2:C64) in your formula refers to the range of cells that will be summed, but only for those cells where the corresponding cell in the range (A2:A64) meets the specified criterion ("green").

The SUMIF function in Excel is used to sum a range of cells that meet a certain criterion. It takes three arguments: range, criteria, and sum_range. The sum_range argument in the formula =SUMIF(A2:A64,"green",C2:C64) refers to the range of cells that the function will sum if the criteria are met. In this case, the criteria are "green," and the function will only sum the cells in the sum_range (C2:C64) that correspond to cells in the range (A2:A64) that contain the word "green."

In conclusion, the sum_range argument in the SUMIF function is an important part of the formula that determines which cells will be summed if the criteria are met. It is a versatile tool that can be used in a variety of ways to analyze data in Excel.

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In summary, critical flow is a fluid flow condition that occurs when the flow velocity reaches the sonic speed, and it is a desirable flow condition for certain applications such as in the design of supersonic aircraft engines or in the measurement of fluid flow rates.

Critical flow is a fluid flow condition that occurs when the flow velocity reaches the sonic speed, which is the speed of sound in the fluid. In this condition, the flow rate through a pipe or nozzle cannot be increased any further by increasing the pressure difference driving the flow, as any increase in pressure difference is dissipated in the form of shock waves. Critical flow is a desirable flow condition for certain applications, such as in the design of supersonic aircraft engines or in the measurement of fluid flow rates.

To illustrate this, let's consider the example of a converging-diverging nozzle used to accelerate air to supersonic speeds. The critical flow condition occurs at the narrowest point of the nozzle, known as the throat. At this point, the flow velocity reaches the sonic speed and any further increase in the pressure difference driving the flow will not result in an increase in the flow rate. Instead, the increase in pressure difference will cause a shock wave to form in the nozzle, which can cause damage to the nozzle if it is not designed to withstand such conditions.

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Nec Article 430 covers selection of time-delay fuses for motor- overload protection.

Article 430 that is found in  National Electrical Code (NEC) is known to be state as “Motors, Motor Circuits and Controllers.” .

Note that the article tells that it covers areas such as motors, motor branch-circuit as well as feeder conductors, motor branch-circuit and others.

Therefore, Nec Article 430 covers selection of time-delay fuses for motor- overload protection.

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Answer:

SECTION LEARNING OBJECTIVES

By the end of this section, you will be able to do the following:

Distinguish between static friction and kinetic friction

Solve problems involving inclined planes

Section Key Terms

kinetic friction static friction

Static Friction and Kinetic Friction

Recall from the previous chapter that friction is a force that opposes motion, and is around us all the time. Friction allows us to move, which you have discovered if you have ever tried to walk on ice.

There are different types of friction—kinetic and static. Kinetic friction acts on an object in motion, while static friction acts on an object or system at rest. The maximum static friction is usually greater than the kinetic friction between the objects.

Imagine, for example, trying to slide a heavy crate across a concrete floor. You may push harder and harder on the crate and not move it at all. This means that the static friction responds to what you do—it increases to be equal to and in the opposite direction of your push. But if you finally push hard enough, the crate seems to slip suddenly and starts to move. Once in motion, it is easier to keep it in motion than it was to get it started because the kinetic friction force is less than the static friction force. If you were to add mass to the crate, (for example, by placing a box on top of it) you would need to push even harder to get it started and also to keep it moving. If, on the other hand, you oiled the concrete you would find it easier to get the crate started and keep it going.

Figure 5.33 shows how friction occurs at the interface between two objects. Magnifying these surfaces shows that they are rough on the microscopic level. So when you push to get an object moving (in this case, a crate), you must raise the object until it can skip along with just the tips of the surface hitting, break off the points, or do both. The harder the surfaces are pushed together (such as if another box is placed on the crate), the more force is needed to move them.

here's your answer..

Answer:

There are 3 main types of resistors based on their composition: carbon-composition resistors, carbon-film resistors, and metal-film resistors.

Explanation:

there is also

Potentiometer.

Rheostat.

Thermistor.

Magneto resistor.

Photoresistor.

Humistor.

Force sensitive resistor.

Answer:

Attached below is the Radial power circuit arrangement

Explanation:

Radial power circuit arrangement is done in a way that a single cable starts from the fuse box and connects to all the outlet socket contained in the circuit also the cable contains wires ( live , neutral and earth )

The advantage of a radial power circuit arrangement is that it enables easy identification of electrical faults on the circuit.

Before using a vise to mount work, wipe the vise base and worktable clean, inspect it for burrs and nicks, and bolt it firmly to the table.

The complete question is,
When a vise is used to mount work, ____.

wipe the vise base and worktable clean, inspect it for burrs and nicks, and bolt it firmly to the table

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Here's a procedure called Power that will calculate integer powers of integer numbers.

In other words, it will calculate xy given that both x and y are integers: def power(base, exponent): if exponent == 0:        return 1 elif exponent < 0:return 1 / power(base, -exponent)    elif exponent % 2 == 0:        return power(base * base, exponent / 2)    else:        return base * power(base, exponent - 1)How does this procedure work? Let's break it down into its parts:

We define a function called power that takes two arguments: base and exponent. If the exponent is 0, then we return 1. This is because any number raised to the 0th power is 1. If the exponent is negative, then we return the reciprocal of power(base, -exponent). This is because a negative exponent is equivalent to taking the reciprocal of the base raised to the positive exponent (i.e. x⁻ⁿ = 1/xⁿ).If the exponent is even, then we return power(base * base, exponent / 2). This is because any number raised to an even power can be written as the square of that number raised to half the power (i.e. x²ⁿ = (x²)ⁿ = (xⁿ)²).

If the exponent is odd, then we return base * power(base, exponent - 1). This is because any number raised to an odd power can be written as the product of that number raised to one less than the power and the base (i.e. x²ⁿ⁺¹ = x * x²ⁿ). Therefore, this procedure calculates integer powers of integer numbers by breaking the exponent down into smaller, simpler pieces and recursively calling itself until it reaches the base case of exponent = 0.

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Answer:

True

Explanation:

We can make this conclusion because the term Computer graphics usually refers not to a computer language, but to a technology found in computers that allows the display of images on the computer.

This technology is made possible by certain computer hardware and software but not the "Graphics language electronic processing."

Answer:

I can help you with your calculation.

To add and subtract angles in degrees, minutes, seconds (DMS) form, you need to follow these steps12:

Align the angles so that the degrees, minutes, and seconds are in the same column.

Add or subtract the seconds first. If the result is more than 60 or less than 0, adjust the minutes accordingly.

Add or subtract the minutes next. If the result is more than 60 or less than 0, adjust the degrees accordingly.

Add or subtract the degrees last.

Using this method, your calculation can be done as follows:

64º26’18’’ + 195º57’12,75’’ – 100º55’35’’ = 64º26’18’’ + 195º57’12.75’’ – 100º55’35’’ = 159º83’30.75’’ – 100º55’35’’ = 159º83’(30.75 - 35)’’ – 100º55’0’’ = 159º82’55.75’’ – 100º55’0’’ = 159º(82 - 55)’55.75’’ – 100º0’0’’ = 159º27’55.75’’ – 100º0’0’’ = (159 - 100)º27’55.75’’ = 59º27’55.75’’

Therefore, the answer is 59º27’55.75’’. I hope this helps!

Explanation:

The angular velocity of point B is 1/30 rad/s, and the angular acceleration of point B is -1/120 rad/s²

a) To find the angular velocity of point B, we first need to find its linear velocity. Using the formula v = rω, where v is the linear velocity, r is the radius, and ω is the angular velocity, we can write:

v = 2/ (given)
r = 60 (length of line BC)

So, 2/ = 60ω
ω = 1/30 rad/s

b) To find the angular acceleration of point B, we can use the formula α = a/r, where α is the angular acceleration, a is the linear acceleration, and r is the radius. We can find the linear acceleration using the formula a = -deceleration = -10/2 = -5/ (negative sign indicates deceleration).

So, α = (-5/)/60
α = -1/120 rad/s²

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Answer:

sheet metal

Explanation:

The inequality which can be used to determine s, the number of sets of spoons Christopher could buy for the restaurant to have enough spoons is

35 + 10s ≥ 75

An inequality is simply used to show the relationship between the expressions that aren't equal.

The restaurant needs at least 75 spoons and there are currently 35 spoons and each set on sale contains 10 spoon.

Let each set be represented as s. This will be illustrated as:

35 + (10 × s) ≥ 75

35 + 10s ≥ 75

Collect like terms

10s ≥ 75 - 30

10s ≥ 45

Divide

s ≥ 45/10

s ≥ 4.5

The restaurant must have at least 5 sets.

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The inequality that can be used to determine s, the number of sets of spoons Christopher could buy for the restaurant, is 35 + 10s ≥ 75.

Inequality is a term used to show two relations between two values that are not equal to each other.

Given, the restaurant needs at least 775 spoons. They have 355 spoons and each set contains 10 spoons.

Then the expression is ;

35 + (10 × s) ≥ 75

35 + 10s ≥ 75

Like terms are extracted

10s ≥ 75 - 30

10s ≥ 45

s ≥ 45/10

s ≥ 4.5

Thus, the inequality in the number of sets of spoons is 35 + 10s ≥ 75.

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The question asks for the lowest possible elevation of the bottom of the overpass to ensure sufficient stopping sight distance at 60 mi/hr. Stopping sight distance is the distance required for a driver to bring their vehicle to a complete stop in an emergency.
To determine the stopping sight distance, we can use the following formula:

Stopping Sight Distance = Perception Distance + Reaction Distance + Braking Distance

Perception distance can be calculated as follows:

Perception Distance = 1.47 (t + 1.5V)

where t is the perception-reaction time (1.5 seconds) and V is the design speed (60 mi/hr).

Perception Distance = 1.47 (1.5 + 1.5 x 60) = 220.5 ft

Reaction distance can be calculated as follows:

Reaction Distance = V x t

Reaction Distance = 60 x 1.5 = 90 ft

Braking distance can be calculated as follows:

Braking Distance = (V² / 30f) + (V/2g)(a + f)

where f is the coefficient of friction between the tires and the road surface, g is the acceleration due to gravity (32.2 ft/s²), and a is the grade.

Since the initial grade is -3.0%, we can assume that the entire vertical curve has a grade of -3.0%. Therefore, a = -3.0%.

The coefficient of friction depends on several factors such as the condition of the road surface, the weather conditions, and the type of tires. A typical value for the coefficient of friction for dry pavement is 0.7.

Braking Distance = (60² / (30 x 0.7)) + (60/2 x 32.2)(-0.03 + 0.7)

Braking Distance = 410.96 + 180.18 = 591.14 ft

Therefore, the stopping sight distance is:

Stopping Sight Distance = Perception Distance + Reaction Distance + Braking Distance

Stopping Sight Distance = 220.5 + 90 + 591.14 = 901.64 ft

To ensure sufficient stopping sight distance, the driver must be able to see at least 901.64 ft ahead of their vehicle. This means that the lowest possible elevation of the bottom of the overpass should be such that the vertical distance from the driver's eye height (5 ft) to the overpass is greater than or equal to 901.64 ft.

Let h be the height of the overpass above the PVI. Then the vertical distance from the driver's eye height to the overpass is h - 5 ft.

h - 5 ft ≥ 901.64 ft

h ≥ 906.64 ft

Therefore, the lowest possible elevation of the bottom of the overpass should be 906.64 ft above the PVI.

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The correct answer is B. cylinder unloading. Reciprocating compressors, also known as piston compressors, can control their capacity through cylinder unloading.

This means that the compressor can adjust its output by selectively activating or deactivating cylinders in the compressor. By unloading certain cylinders, the compressor can reduce its capacity and adjust to the desired output. This allows for more precise control over the compression process and helps optimize energy efficiency and performance.

Air-side economizers, purge unit operation, and venting are not directly related to capacity control in reciprocating compressors. Air-side economizers are used in HVAC systems to provide cooling by using outside air when ambient conditions permit. Purge unit operation refers to the removal of impurities or unwanted substances from a system. Venting is the process of releasing gases or fluids from a system.

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Answer:

the process capability index for the precision machining process is 0.667

Explanation:

Given the data in the question;

Lower Specification Limits LSL = 0.99 mm

Upper Specification Limits USL = 1.01 mm.

The standard deviation σ = 0.005 mm

mean μ = 1 mm

capability index Cpk = ?

Cpk = min( USL - μ / 3σ, μ - LSL / 3σ )

we substitute

Cpk = min( 1.01 mm - 1 mm / 3(0.005 mm ), 1 - 0.99 mm / 3(0.005 mm) )

Cpk = min( 0.01 mm / 0.015 mm, 0.01 mm / 0.015 mm )

Cpk = min( 0.6666, 0.6666 )

∴ Cpk = 0.6666 ≈ 0.667

Therefore, the process capability index for the precision machining process is 0.667

By Gas law, the outlet temp of the gas compared to the inlet temperature is 50k higher than the inlet temperature.

Gas laws are laws that relate to a gas's pressure, volume, and temperature. Boyle's law, named after Robert Boyle, states that at a constant temperature, the pressure P of a gas varies inversely with its volume V, or PV = k, where k is a constant.

The volume of a gas increases as the pressure decreases, according to Boyle's Law. According to Charles' Law, the volume of a gas increases as its temperature rises. And Avogadro's Law states that as the amount of gas increases, so does the volume.

According to the ideal gas law.

number of moles of gas is indirectly related to the temperature

So when the inert gas is added, the feed flow rate would have also been increased to compensate for the rate of reaction. In such a case the number of moles of gas increases. This will result in a drop in temperature.

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The missing term in the presented paragraph is environmental.

In recent years the effects of climate change have been strongly manifested around the world causing:

Therefore, many companies have begun to investigate productive alternatives to reduce their environmental impact. In the case of the car industry, companies have deepened their research on other sources of energy such as:

One of them is Toyota, the Japanese brand that has developed cars that work hybrid, that is, with gasoline and electric power. This will reduce the emissions of CO2 and other harmful gases into the atmosphere.

Therefore, it is possible to infer that the missing term in the paragraph is Environmental.

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A true statement about the seal between the respirator and the wearer's face is: D. facial hair can prevent a respirator from properly sealing to the wearer’s face.

A respirator can be defined as a personal protective equipment that is typically worn over the face to protect the mouth and nose, while protecting the wearer from inhaling smoke, dust, or other toxic chemical substances.

In this context, a true statement about the seal between the respirator and the wearer's face is that facial hair has the ability to prevent a respirator from properly sealing to the wearer’s face.

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Therefore, the maximum bending stress at point a based on the given question is 744.2 MPa.

Given:

Moment of inertia of the section (I) = 2.6873×10^-5 m^4

Vertical distance away from the neutral axis (c) = 0.1 m

Maximum bending moment (M) = 20,000 N·m

To find:

Maximum bending stress (σmax)

Formula:

σmax = (M * c) / I

Calculation:

σmax = (20,000 N·m * 0.1 m) / 2.6873×10^-5 m^4

σmax = 744.2 MPa

Therefore, the maximum bending stress is 744.2 MPa.

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Answer:

Casual workers

Explanation:

Casual workers are workers on a short-term employment contract that unlike non-permanent workers have restricted entitlement to benefits, little employment security, with the primary distinction of there being a lack of a stable connection or relationship between them and their employers for the to be referred to as employees.

Answer:

Diameter of pipe is 0.535 ft

Explanation:

see attachment, its works out 1st half

The divergence and the curl of these vectors is  A.

A field of vectors where each vector is directed toward the origin. By dividing our by this quantity, we may determine the circulation density. By utilizing the flux property, expressions for a vector field's divergence in orthogonal curvilinear co-ordinates can be produced.

What is the curl of vector field?

The cross product and dot product may be used to define the divergence and curl in terms of the same odd vector.

The curl and divergence characteristics to assess the conservatism of a vector field.

The field's strength, the area of the surface it goes through, and their alignment all affect the total flux. We suggested that the vector flux description of these vectors could aid in our physical comprehension of their characteristics of divergence and circulation.

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