Empty disposable R-134a refrigerant containers should be: a. disposed of according to SAE J2196. b. evacuated into a recovery/recycling machinec. flushed with R-152a refrigerantd. flushed with R-134a refrigerant.

Answers

Answer 1

Vacuum into a recovery/recycling machine, empty disposable R-134a refrigerant containers should be disposed of.

An area devoid of the matter is called a vacuum. The adjective vacuum, which means "empty" or "void," is the source of the word. A region with a gaseous pressure significantly below atmospheric pressure might be thought of as an approximate representation of such a vacuum. The term "partial vacuum" is used to describe an imperfect vacuum, such as one that might exist in a laboratory or in space, and is frequently used when physicists discuss the ideal test outcomes that would take place in a perfect vacuum, which they sometimes simply refer to as "vacuum" or free space. Contrarily, any area where the pressure is significantly lower than atmospheric pressure is referred to as a vacuum in engineering and applied physics. A space that envelops an object is referred to as being in vacuo in Latin.

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Related Questions

how to use delaman tire air compressor, air compressor 12v portable mini air compressor electric tire inflator pump 12 volt car 300 psi

Answers

To use the Delaman Tire Air Compressor, Air Compressor 12V Portable Mini Air Compressor Electric Tire Inflator Pump 12 Volt Car 300 PSI, first plug the compressor into a 12-volt power source.

Check the pressure gauge on the compressor to make sure it is at the desired pressure setting. Attach the air hose of the compressor to the valve stem of the tire. Turn the air compressor on and wait until the tire is inflated to the desired pressure level. Turn the air compressor off and disconnect the air hose from the tire. Check the tire pressure with a tire pressure gauge to make sure it is at the correct pressure.

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If a family has four children, find the probability that two of the four children are girls

Answers

Answer: 1/4 or 25% probability

Explanation:

The air gap of an automotive air-conditioning compressor is the space between the
clutch assembly and the air-conditioning pulley.
true
false

Answers

The given statement is TRUE.

Why is this true?

In an automotive air-conditioning system, the compressor is responsible for compressing and circulating refrigerant.

The compressor is typically driven by the engine through a belt and pulley system. The air gap is the space between the clutch assembly, which connects and disconnects the compressor from the engine, and the air-conditioning pulley, which is connected to the compressor and driven by the belt.

The purpose of the air gap is to provide clearance between these two components, which allows the clutch to disengage and the compressor to spin freely when the air-conditioning system is not in use.

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Write a set of instructions to prompt the user for an int value and input it using the Scanner class into the variable x and prompt the user for a double value and input it using the Scanner class into the variable y.
Write a statement using a Scanner method to get the your first name, interactively.

Answers

Scanner scan = Scanner.create(System.in);System.out.println("Enter an integer");int x = scan.nextInt( );System.out.println("Enter a float");float y = scan.nextFloat( );

A BufferedReader can provide user input in the following manner: You must import these items. InputStreamReader inp = new InputStreamReader(System.in); BufferedReader br = new BufferedReader(inp); name as a string = br. readline(); System.in is more difficult to read user input without the Scanner class and instead requires the InputStreamReader to translate data from bytes to characters. To do this, supply an InputStreamReader's function Object() { [native code] } Java's System.in, then pass it to the BufferedReader. When prompted, the user inputs an integer value. With the aid of the nextInt() function from the Scanner Class, this value is obtained from the user. The next integer value is read into the provided variable in Java using the nextInt() function.

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1. when the voltage connected to the inverting input is more positive than the voltage connected to the noninverting input, will the output be positive or negative?

Answers

Because its gain has always been negative, the inverting op amp is essentially a constant or repaired amplifier that produces a negative output voltage.

Explain what voltage is?

When charged electrons (current) are forced through a conducting loop by the pressure of an electric circuit's power source, they can perform tasks like lighting a lamp. In a word, voltage is expressed by volts and equals pressure (V).

What makes voltage significant?

For the electric grid to operate correctly and safely, voltage must be maintained within a predetermined range. Equipment can be "fried" or damaged if the signal is high, and it can perform badly or stall if the voltage is too low.

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A long 35-cm-diameter cylindrical shaft made of stainless steel 304 (k = 14. 9 W/m2·K, rho = 7900 kg/m3 , cp = 477 J/kg·K, and α = 3. 95 × 10-6 m2 /s) comes out of an oven at a uniform temperature of 500°C. The shaft is then allowed to cool slowly in a chamber at 150°C with an average convection heat transfer coefficient of h = 60 W/m2 ·K. Determine the temperature at the center of the shaft 20 min after the start of the cooling process. Also, determine the heat transfer per unit length of the shaft during this time period

Answers

To determine the temperature at the center of the shaft 20 minutes after the start of the cooling process, we can use the 1-D steady-state heat conduction equation:

q'' = -k*(dT/dx)

where q'' is the heat flux per unit area, k is the thermal conductivity of the shaft, T is the temperature, and x is the distance from the surface of the shaft.

The boundary conditions for this problem are:
T(r=R, t) = 150°C (convective heat transfer coefficient)
T(r=0, t) = 500°C (initial temperature)

We can use the above equation to get the temperature distribution in the shaft, and then integrate it to find the temperature at the center of the shaft.

To determine the heat transfer per unit length of the shaft during this time period, we can use the following equation:
q' = hA(T_surface - T_ambient)

where q' is the heat transfer per unit length, h is the convective heat transfer coefficient, A is the surface area, T_surface is the temperature of the surface and T_ambient is the temperature of the surrounding environment.

Please note that the above information is just an overview of how to solve the problem and is not a complete solution. The above equations and boundary conditions may require some modification according to the given problem, and the exact solution would require a detailed mathematical analysis.

The video of the Titanic sinking shows that the ship broke into two parts. Why do you think that this happened

Answers

When the Titanic struck the iceberg, the hull plates split open and continued to crack as the ship was flooded. Brittle failure of the rivets used to fasten the hull plates to the ship's main structure was also caused by low water temperatures and high impact loading.

What is the history of Titanic?

The RMS Titanic was a British passenger liner operated by the White Star Line that sank in the North Atlantic Ocean on 15 April 1912 after colliding with an iceberg during her maiden voyage from Southampton, England, to New York City, USA.

More than 1,500 people died, making it the deadliest sinking of a single ship to that point. It is still the deadliest ocean liner or cruise ship sinking in peacetime.

The disaster drew widespread public attention, laid the groundwork for the disaster film genre, and inspired numerous artistic works. The RMS Titanic was the largest ship in the world when she entered service, and she was the second of three Olympic-class ocean liners operated by the White Star Line.

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what are five reasons expressways have lower collision rates than other highways? (222) what are four different types of expressway interchanges (222-233) 3. what strategies can you follow for low risk driving on exprewways (223-224) obser obse

Answers

On expressways, there were around 38.6% of injuries, compared to 61.4% on rural roads. Although 89.1% of encounters resulted in minor or major crashes, 10.9% of interactions were fatal.

What does an accident entail?

Accidents are unanticipated events that frequently result in loss, damage, and sometimes even injury. Every year, a large number of people have significant disabilities or injuries as a result of accidents, which are common in human existence. There is often property damage or personal injuries in accidents.

What accident mishaps?

drivers who are intoxicated or fatigued, drive excessively quickly, recklessly, break the law, or ignore traffic signs. Ignorance, carelessness, inappropriate crossing, veering into the right-of-way, nor jaywalking are all pedestrian errors.

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the primary difference between integrated/concurrent engineering development and functional/sequential development is:

Answers

Integrated development invests more money upfront to make savings later on. Sequential development covers the stages of development more thoroughly.

An integrated development environment (IDE) is a piece of software that offers computer programmers a full range of tools for creating software. A  build automation tools and a source code editor are typically included in an IDE. SharpDevelop is an example of IDEs that lacks the requisite compiler, interpreter, or both. Other IDEs, such as NetBeans and Eclipse, do.

A version control system or numerous tools to make the creation of a graphical user interface (GUI) simpler may be included, blurring the line between an IDE and other components of the larger development environment. For usage in object-oriented software development, a class browser, an object browser, and a class hierarchy diagram are also common features of contemporary IDEs.

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if the turn ratio of a step-down transformer is 15:1 and the series impedance (referred to the primary) of j50 ohm. if the no-load primary voltage is 345 kv (line-to-line), and the secondary side is serving a y-connected balance load of 0.667 j0.111 ohms, the real power absorbed by the load (per phase) would be :

Answers

if the turn ratio of a step-down transformer is 15:1 and the series impedance C= 3.157 ×10^-3 < -36.87° Ω~¹ D= Is/Ir Since Is=Ir

How do resistance and impedance differ?

Voltage split by permeability in a resistor equals resistance. Voltage multiplied by current for just about any component is referred to as impedance. Instead of being referred to as impedance in the context of a resistor, the voltage to current ratio is called resistance.

Calculation

Frequency f=60Hz

Line impedance Z= 12.84 + j72.76 Ω

Then,

The resistance is R=12.84Ω

And reactance is X=72.76Ω

Z=√(12.84²+72.76²)

Z=73.88

Angle = arctan(X/R)

Angle = arctan(72.76/12.84)

Angle=80°

Then, Z=73.88 < 80° ohms

Load voltage is 132 kV

Load power P=55 MWA

Power factor =0.8lagging

the relation between the sending and receiving end specifications are given using ABCD parameters by the equations below.

Vs = AVr + BIr

Is = CVr + DIr

Where

Vs is sending Voltage

Vr is receiving Voltage

Is is sending current

Ir is receiving current

A is ratio of source voltage to received voltage A=Vs/Vr when Ir=0

B is short circuit resistance

B= Vs/Ir when Vr=0

C is ratio of source current to received voltage C=Is/Vr when Ir=0

D is ratio of source current to received current D=Is/Ir when Vr=0

Now,

The load at 55MVA at 132kV (line to line)

Therefore, load current is

Ir= P/V√3

Ir=55×10^6/(132×10^3×√3)

Ir=240.56 Amps

It has a power factor 0.8 lagging

PF=Cosθ

0.8=Cosθ

θ=arcCos(0.8)

θ=36.87°

Therefore, Ir=240.56 <-36.87°

Vr=V/√3

Vr=132/√3

Vr=76.21 kV. Phase voltage

Vr= 76210 < 0° V

For series impedance,

Using short line approximation

Vs = Vr + IrZ

Vs = 76210 < 0° + (240.56 <-36.87° × 73.88 < 80°)

Using calculator

Vs=76210<0° + 17772.5728<(-36.87°+80°)

Vs=76210<0° + 17772.5728<43.13°

Vs=89970.67<7.7°

Also

Is = Ir = 240.56 <-36.87° Amps

Therefore, the ABCD parameters is

A=Vs/Vr

A= 89970.67 <7.7° / 76210 <0°

A=1.181 <7.7-0

A=1.18 <7.7° no unit

B = Vs/Ir

B = 89970.67 < 7.7° / 240.56 <-36.87°

B = 347.01 < 7.7+36.87

B= 347.01 < 44.57° Ω

C= Is/Vr = 240.56 <-36.87° / 76210 < 0°

C= 0.003157 <-36.87-0

C= 3.157 ×10^-3 < -36.87° /Ω

C= 3.157 ×10^-3 < -36.87° Ω~¹

D= Is/Ir

Since Is=Ir

Then, D = 1 no unit.

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What is the study of how organisms interact with each other and their environment?

Answers

Answer:

Ecology

Explanation:

why are metamorphic rocks formed by contact metamorphism

Answers

Metamorphic rocks are formed by contact metamorphism when rocks are heated by the intrusion of hot magma or lava into the surrounding rock. This heating causes the minerals in the rocks to recrystallize and change into new minerals, forming metamorphic rocks.

What is contact metamorphism?

Contact metamorphism is a type of metamorphism that occurs when rocks are heated by the intrusion of hot magma or lava into the surrounding rock. The heat causes the minerals in the rocks to recrystallize and change into new minerals, forming metamorphic rocks.

The change in the rock is generally limited to a zone of contact, or aureole, surrounding the intrusion, and the degree of metamorphism decreases with distance from the intrusion. The temperature and pressure conditions that cause this change vary depending on the type of rock and the proximity to the intrusion.

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For an economic region, summary of a data is given below.
Mean 535
Median 500
Mode 500
Standard Deviation 96
Minimum 220
Maximum 925
5th percentile 400
10th percentile 430
90th percentile 640
95th percentile 720


What can you conclude about the shape of a histogram of this data?

Answers

Answer:

Explanation:

Based on the summary of the data given, it can be concluded that the histogram of the data is likely to be right-skewed, or positively-skewed. This means that the majority of the data points will be concentrated to the left of the mean, with values gradually decreasing until the highest value of 925. The mean of 535 is greater than the median and mode of 500, indicating that there are a few values that are higher than the majority of the data points. The 5th percentile (400) and 10th percentile (430) are relatively close to the mode, indicating that the bulk of the data points are concentrated between 400 and 500. The 90th percentile (640) and 95th percentile (720) are relatively close to the maximum of 925, indicating that there are a few values that are much higher than the majority of the data points.

Collar A starts from rest at t 5 0 and moves downward with a constant acceleration of 7 in./s2. Collar B moves upward with a constant acceleration, and its initial velocity is 8 in./s. Knowing that collar B moves through 20 in. between t 5 0 and t 5 2 s, determine (a) the accelerations of collar B and block C, (b) the time at which the velocity of block C is zero, (c) the distance through which block C will have moved at that time.

Answers

Time t 0 sees Collar A start at rest and drop at a steady speed of 7 in/s2. Collar B rises with x = 727.5 millimeters constant.

What does the term "acceleration" mean in plain English?

Acceleration is the change in speed that occurs quickly. Generally speaking, but not always, acceleration denotes a shift in speed. Even when an object travels in a circular path, its velocity axis is still moving, therefore it keeps gaining speed.

Calculation

a)   aB = 240 mm/s² (↓)

aA = - 345 mm/s²

b) For the Block C

v₀ = 130 mm/s

For the Block A

v₀ = - 43.33 mm/s

c)  Δx =  727.5 mm

a)  For the Block B  

v = v₀ + a*t

480 = 0 + a*(2)

aB = 240 mm/s² (↓)

Then we have

3*LA + 4*LB + LC = L

If we apply

d(3*LA + 4*LB + LC)/dt = dL/dt

3*vA + 4*vB + vC = 0

d(3*vA + 4*vB + vC)/dt = d(0)/dt

3*aA + 4*aB + aC = 0

aA = - (4*aB + aC) / 3

aA = - (4*240 mm/s² + 75 mm/s²) / 3

aA = - 345 mm/s²

b) For the Block C

v = v₀ + a*t

v₀ = v – a*t

v₀ = 280 – (75)(2) = 130 mm/s

For the Block A

When t = 2 s

vB = 480 mm/s  

vC = 280 mm/s

we use the formula

3*vA + 4*vB + vC = 0

3*vA + 4*(480) + 280 = 0

vA = - 733.33 mm/s

Now, we can apply

v = v₀ + a*t

- 733.33 mm/s = v₀ + (- 345 mm/s2)(2 s)

v₀ = - 43.33 mm/s

c) We can use the equation

Δx = v₀*t + (1/2)*a*t²

Δx = 130*(3) + (1/2)(75)(3)²

Δx =  727.5 mm

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Let P(n) be the statement that 1^3 + 2^3 + 3^3 + + n^3 = (n(n+1)/2)^2 for the positive integer n. What is the statement P(1)? Show that P(1) is true, completing the basis step of the proof. What is the inductive hypothesis? What do you need to prove in the inductive step?Complete the inductive step, identifying where you use the inductive hypothesis.

Answers

One must first assume the inductive hypothesis for n before using that assumption to demonstrate that the assertion is true for n + 1. This is known as the induction step.

What does inductive reasoning in math class 11 mean?

This means that the assertion P(n) is true for n = k + 1 if and only if the supplied statement holds true for some prime number k. This is sometimes referred to as the "inductive step," and the "inductive hypothesis" is the presumption because P(n) is valid for n=k.

What does induction mean exactly?

Electromagnetic induction, or simply induction, is the technique of creating electrical charge in a conductor by exposing the conductor to a fluctuating magnetic field.

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A type of heating and air conditioning system that relies only on heated or cooled water to adjust the air temperature is known as a
A. feedback
B. hydraulically controlled
C.hydronic
D. wet
system.

Answers

A type of heating and air conditioning system that relies only on heated or cooled water to adjust the air temperature is known as a hydronic. The correct option is C.

What is an air conditioning system?

The process of creating and maintaining specific temperatures, relative humidity, and air purity conditions in indoor environments is known as air conditioning. This procedure is commonly used to maintain a level of personal comfort.

A hydronic HVAC system transfers energy throughout the structure by using water as the principal fluid.

Therefore, the correct option is C. hydronic.

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Figure 1 shows Impact test data for a type carbon steel. Briefly describe the temperature dependency of this material to its mechanical properties

Answers

Answer:

Explanation:

Answer:

it gets more ductile as you apply heat

which class of material is generally considered to be the weakest at room temperature, offering the lowest elastic moduli and tensile strengths? composites ceramics polymers metals

Answers

With the lowest strength and elastic modulus and tensile strengths available at room temperature, polymer are typically thought to be the weakest materials.

With an example, what is tensile strength?

It is defined as the minimum tensile stress required to separate the material. The metal has a mechanical properties of 1,000 pounds of force, for instance, if a metal rod with a cross section of one square inch can bear a thrust of 1000 usd but snaps with further pressure.

What other tensile strength types are there?

Tensile strength comes in three varieties: Yield strength (A) is the maximum amount of stress that a material can endure without permanently deforming. The highest stress that a material can bear is its ultimate strength (B). The stress vector on the maximum fault at the time of rupture is known as breaking strength (C).

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true/false. When the robot reaches the gray square, it turns around and faces the bottom of the grid. Which of the following changes, if any, should be made to the code segment to move the robot back to its original position in the bottom-left square of the grid and facing toward the bottom of the grid

Answers

Because the head point is to the left and is at location 0,3, the second grid. Alternative A, C, and F will all be incorrect if part B is correct.

The way a grid functions?

A grid is a pattern of intersecting lines or bars. It acts as a blueprint for dividing up and organizing a space. Lines that intersect at right angles and are equally spaced apart make up a two-dimensional grid. Grids can be used to order and organize information.

calculation

Since the initial if statement, calling move #1: direction = left, turtles moves right, at location (2, 3). Second time, turtle travels forward, direction = right, position (2,4), head right, Third attempt, left direction, turtle pointing a. Position ( 1, 4), Moving ahead and pointing up for the fourth time, at position 0,4. five times.

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instead of having a third terminal used for electronic control signals like most transistors, phototransistors use ? as the control input.

Answers

Phototransistors use light as the control input instead of having a third terminal used for electronic control signals like most transistors.

Phototransistors are sensitive to light, allowing them to be used in applications where light needs to be detected or converted into an electronic signal. Phototransistors are typically used in motion detection, light detection, and optical communications.

Electronic control signals are digital or analog signals used to control electronic systems and devices. These signals can be used to control the operation of a wide range of electronic devices, such as computers, motors, actuators, and sensors. Electronic control signals can be generated by a variety of devices, including microcontrollers, computers, and logic circuits. The type of signal used will depend on the device that is being controlled and the type of control system it is part of. Examples of control signals include pulse width modulation (PWM), pulse frequency modulation (PFM), and digital control signals.

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Which of the following protocols is commonly used to collect information about CPU utilization and memory usage from network devices? NetFlow MIB SNMP SMTP

Answers

Answer:

SNMP

Explanation:

The SNMP protocol is used by network administrators to gather information about several network devices on a given network. You need an SNMP server and each device on the network, e.g., router, switch, server, workstation, printer, etc. must be configured to report things like CPU utilization, up time, down time, etc. to the server to provide a history of the health of the overall network and each node within it to help them troubleshoot issues or to find root causes to problems.

Two 2.30 cm x 2.30 cm plates that form a parallel-plate capacitor are charged to ±0.708 nC.(a) What is the electric field strength inside the capacitor if the spacing between the plates is 1.30 mm?(b) What is the potential difference across the capacitor if the spacing between the plates is 1.30 mm?(c) What is the electric field strength inside the capacitor if the spacing between the plates is 2.60 mm?(d) What is the potential difference across the capacitor if the spacing between the plates is 2.60 mm?

Answers

If there is a 1.30 mm gap between the plates, total electric field strength from the inside of the capacitor is E = 1.512 * 105 V. The electric potential across the capacitor, the distance between the plates, is V = 302.4 V.

What exactly is a "electric field"?

Each position in space has an electric field attached with it when there is charge involved in any form. Electric field strength (E), also known as the electric field magnitude and direction, is stated as a value.

What is an example of an electric field?

The area of space surrounding a static electricity particle or object that is where the charge body perceives force is known as the electrostatic potential. Examples: -Charges and their arrangements, such as filters and rechargeable battery, produce electric fields.

parallel plate capacitors,

A= 2.30×2.30=5.29 cm²

=5.29×10⁻⁴ m²

capacitor, Qc = ±0.708nC

= ±0.708×10⁻⁹

electric field strength, E

distance, =1.00 mm

=10⁻³ m

E = Q/(ϵ_o A)

E = 0.708×10⁻⁹/(8.85×10⁻²×5.29×10⁻⁴

= 1.512×10⁵ N/C

Potential difference,

d = 2×10⁻³ m

V = Ed

= 1.512×10⁵×2×10⁻³

= 302.4 V

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Which of the following describes “fast track” construction?


The construction phase begins while the design and pre-construction phase is still underway.
The construction phase begins while the design and pre-construction phase is still underway.

A bidding process follows the design phase before construction begins.
A bidding process follows the design phase before construction begins.

A complex set of checks and balances strictly limits each role.
A complex set of checks and balances strictly limits each role.

Construction follows a definite sequence with each step concluding before the next begins.
Construction follows a definite sequence with each step concluding before the next begins.

Answers

Fast track construction is a method of accelerating a construction project's timeline by overlapping the design and construction phases.

Which of the following best describes construction that is "fast track"?Fast track construction is a construction process in which the construction phase begins while the design and pre-construction phase is still underway.This allows for a shorter design and construction timeline and reduces the overall cost of the project.In this process, a bidding process follows the design phase and a complex set of checks and balances are implemented to strictly limit each role.Construction follows a definite sequence with each step concluding before the next begins.This allows for flexibility in the timeline, allowing for changes to be made if needed.Fast track construction is often used when a project is time sensitive, or when cost savings are necessary.With this method, the design and construction phases overlap, which can save time and money for the overall project.It can also be beneficial for projects with tight deadlines, as it can help the project complete on time.

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The figure shows two possible paths for

negotiating an unbanked turn on a

horizontal portion of a race course. Path

− follows the centerline of the road

and has a radius of curvature #= 85 ,

while path − uses the width of the

road to good advantage in increasing the

radius of curvature to $= 200 . If the

drivers limit their speeds in their curves

so that the lateral acceleration does not

exceed 0.8, determine the maximum

speed for each path.

Answers

Answer:

beautiful day here in a little bit to get used to

Explanation:

If hgjukeuc you a call when we are all

2-5-9 Two different fuels are being considered for a 1 MW (net output) heat engine which can operate between the highest temperature produced during the burning of the fuel and the atmospheric temperature of 300 K. Fuel A bums at 2500 K, delivering 50 MJ/kg (heating value) and costs $2 per kilogram. Fuel B burns at 1500 K, delivering 40 MJ/kg and costs $1.50 per kilogram. Determine the minimum fuel cost per hour for (a) fuel A and (b) fuel B.

Answers

At 2500 K, Fuel A is ineffective, producing 50 MJ/kg (heating value), and costing $2 per kilogram. Fuel B costs $1.50 per kilogram, burns at 1500 K, and produces 40 MJ/kg.

What does "heat engine" mean?

A thermal engine is a machine that uses heat to generate power. It draws heat from a tank, uses that heat to produce work, such as move a piston or lift weights, and then releases that thermal energy into the drain.

What is the heat engine's operating principle?

A temperature engine is a machine that generates work using thermal energy. A warm and a cold reservoir's respective temperature differences produce thermal energy. This distinction is used by the heat engine in a thermodynamic process.

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Chapter 9 hand tools

Answers

Any tool that is powered by the user's hands as opposed to a motor is a hand tool.

What are hand tools?

Any tool that is powered by hand rather than a motor is referred to as a hand tool.

Wrenches, pliers, cutters, files, striking tools, struck or hammered tools, screwdrivers, vises, clamps, snips, hacksaws, drills, and knives are examples of different types of hand tools.

It should be noted that classifying hand tools according to its function is important because it will provide the user with enough knowledge to be able to use the hand tools.

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Complete question

Explain hand tools

The flat belts are moving at the speeds shown. Plot both the velocity profile within the oil film and the shearstress distribution. The pressures at A and B are atmospheric. Take mo

Answers

Shear stress values and the velocity profile are v=0.4m/s,
t=45 N/m^ 2

Explanation:
                   

A) Velocity profile=0.6m/s, and 0.2m/s        
relative velocity=0.6m/s-0.2m/s

v=0.4m/s
                                   
∵ thickness=4 mm
t=4x10^ -3m              
           
B) Shear stress t=R v/t
=0.45x0.4/4x10^-3
t=45 N/m^ 2                          


Shear velocity, also known as friction velocity, is a way to express a shear stress in velocity units. Comparing actual speeds, like the flow in a stream, to ones that reflect shear between layers of flow is a useful technique in fluid mechanics.
Due to its close connection to earthquakes and the downslope movement of earth materials, the resulting shear has a significant impact on nature. Either solids or liquids can experience shear stress.
Using equation, one can determine the shear velocity.

U*=  √r/p in the general case.  
                 



INCOMPLETE QUESTION:

The flat belts are moving at the speeds shown. Plot both the velocity profile within the oil film and the  shear stress  distribution. The pressures at A and B are atmospheric. Take u^0=0.45N.s/m2 and P^0=920KG/M3  

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what is the occupant load of baseball stadium of 5,550 seats with 2,0000 square feet of standing space?

Answers

occupant load of a baseball stadium with 5,550 seats and 2,000 square feet of space. Since 4 is less than 5, the rounding number remains the same. Move 3: 38,496 = 38,000

What is a stadium, exactly?

stadium: an enclosure having a wide area for sporting events and other demonstrations with lots of spectator seating. The term is derived from the stade, a Greek unit of length used to describe the length of the first Greek footraces.

Calculation

We get 38,000 when rounded to the nearest thousand.

Step-by-step explanation:

Consider the provided number  38,496 .

Here, we need to round off to the nearest thousand.

The rule of rounding a number is:

If 0, 1, 2, 3, or 4 follow the number, then no need to change the rounding digit.

If 5, 6, 7, 8, or 9 follow the number, then rounding digit rounds up by one number.

Round the number by using following steps:

Step 1: Identify the thousand place and underline it.

38,496

Step 2: Find the right digit to the thousand place. i.e 4

Here 4 is less than 5 so no need to change the rounding digit.

Step 3: 38,496 = 38,000

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Hydraulic engineers in the United States often use, as a units of volume of water, the acre-foot, defined as the volume of water that will cover 1 acre (where 1 acre = 43560 ft2) of land to a depth of 1 ft. A severe thunderstorm dumped 2.0 in. of rain in 30 min on a town of area 45 km2. What volume of water, in acre-feet, fell on the town?

Answers

Following that, they may also be involved in the design of machinery, medical equipment, and vehicles whose structural integrity has an impact on their operation and safety.

Engineers construct the "bones and muscles that are generated the form and also that make the shape of man-made structures." It is necessary to comprehend structural engineering since it determines the stability, strength, stiffness, and earthquake-susceptibility of built structures for both buildings and non-building structures. In order to better integrate their structural designs with those of other designers, such architects and building services engineers, and to frequently oversee the on-site execution of projects by contractors. After that, they might also work on designing machines, medical devices, and cars.

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Q. 1. A sedimentation basin is to be designed so that it will remove 100% of all particles which have a settling velocity of 0.3 mm/s.

(a) For a flow of 10 m3/min, determine appropriate dimensions for a rectangular basin in which the length is 4 times the width.

(b) Determine the total weir length required.

Show in sketches.


Q. 2. Describe the effect you would expect with regard to solids removal if the basin of the Prob. Q. 1 was kept at a detention time of 2 h but made only half as deep. Why would this effect occur? What other factors might influence your choice of basin depth?

Answers

Answer:

he k do it ur go u is a little bit of time v be

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