Shanika is an engineer at an amusement park who is experimenting with changes to the setup for a magnetic roller coaster ride. In one ride, there are two identical roller coaster cars (orange and green) that start on opposite sides of a large magnet located at the center of a station. Shanika wants to get the largest increase in potential energy she can by moving one car one space to the left or the right.
Answers
Shanika needs to move the orange coaster car to point B. This movement will result in the greatest potential energy increase.
What is potential energy?Potential energy is stored energy that is influenced by the relative position of various system components. The potential energy of a spring increases when it is compressed or stretched. When a steel ball is raised above ground, it has more potential energy than when it falls to Earth.
In the elevated position, it can do more work. Potential energy is a property of a system, not an individual body or particle; for example, as the Earth and raised ball are separated, the system has more potential energy.
Potential energy exists in systems with parts that exert varying magnitudes of forces on each other based on their configuration, or relative position.
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Related Questions
True/False Indicate whether the statement is true or false. 11. Electronic leak detectors can only be used to detect CFCs. 12. Disposable cylinders are designed to be used for refrigerant recovery. 13. Refrigerant must be recovered from a leaking system before repairs can be performed. 14. A gauge that reads absolute pressure should be adjusted depending on the elevation. 15. The pressure of a perfect vacuum is 29.92 in. Hg. 16. Both valves need to be closed on a gauge manifold in order to evacuate a system. 17. A decrease in temperature can cause the pressure in a cylinder to increase. 18. Service valves are front seated for normal system operation. 19. The compound gauge measures pressure both above and below atmospheric pressure. 20. Fluorescent leak detectors require the use of a halogen light.
Answers
Answer:11. False 12. True 13. True 14. True 15. True 16. True 17. False 18. False 19. True 20. False
Explanation:
True/False Indicate whether the statement is true or false. 11. Electronic leak detectors can only be used to detect CFCs. 12. Disposable cylinders are designed to be used for refrigerant recovery. 13. Refrigerant must be recovered from a leaking system before repairs can be performed. 14. A gauge that reads absolute pressure should be adjusted depending on the elevation. 15. The pressure of a perfect vacuum is 29.92 in. Hg. 16. Both valves need to be closed on a gauge manifold in order to evacuate a system. 17. A decrease in temperature can cause the pressure in a cylinder to increase. 18. Service valves are front seated for normal system operation. 19. The compound gauge measures pressure both above and below atmospheric pressure. 20. Fluorescent leak detectors require the use of a halogen light.
The statements are determined whether true or false for the refrigerants and Disposable cylinders.
Given data:
False. Electronic leak detectors are capable of detecting a wide range of refrigerants, not just CFCs. They can detect various types of refrigerants such as HFCs, HCFCs, and others.
True. Disposable cylinders are designed to be used once for specific purposes, such as refrigerant recovery. They are typically not refillable and are intended to be discarded after use.
True. It is necessary to recover refrigerant from a leaking system before performing repairs. This ensures that the refrigerant is not released into the atmosphere, which is environmentally harmful. Proper recovery helps to comply with regulations and minimize refrigerant loss.
False. A gauge that reads absolute pressure does not require adjustment based on elevation. Absolute pressure readings are already referenced to a complete vacuum and are not affected by atmospheric pressure changes at different elevations.
False. The pressure of a perfect vacuum is 0 in. Hg. A perfect vacuum implies the absence of any gas or pressure.
True. When evacuating a system using a gauge manifold, it is essential to close both valves to isolate the system and create a proper vacuum.
False. According to the ideal gas law, a decrease in temperature typically results in a decrease in pressure, assuming the volume and the amount of gas remain constant.
False. Service valves, also known as shutoff valves or isolation valves, are typically back seated (closed) for normal system operation to prevent refrigerant flow. Front seating refers to opening the valve fully.
True. A compound gauge is designed to measure pressure both above and below atmospheric pressure. It usually has two scales or sections, one for positive pressure (above atmospheric) and one for negative pressure (below atmospheric).
False. Fluorescent leak detectors do not require the use of a halogen light. They utilize fluorescent dyes or additives that react with refrigerants to emit a fluorescent glow when illuminated with UV (ultraviolet) light. The UV light source can be separate from the detector itself.
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Given: A homogeneous quarter-circle block (with a radius of
R
and a weight of
W
) is supported by a rough, horizontal floor, as shown.. A force
P
is applied to the block at corner
B
. Find: For this problem: a) Determine the
x
-location of the normal force acting on the block by the floor. Express your answer in terms of
R
. b) What is the minimum coefficient of static friction between the block and ground,
μ
s
, that is required to prevent motion of the block? c) Is the block in a state of impending slipping or tipping for the value of
μ
s
found in b) above? Explain. For this problem, use:
P=W
Answers
When a circle is divided into four equal parts, each part is called the quarter of a circle.
What is meant by quarter circle?A circle is a geometric shape that represents the path all of those points take while being equally distance from the circle's centre. A circle's quarter represents one-fourth of the entire circle. As a result, the area of a quarter circle represents the fourth of a circle's total area.
The area of the circle, A = r2 if the radius of the circle is r, follows.
The area of a quarter circle is then equal to A times 14 to get r2/4.
Therefore, the coordinates of a quarter ring's centre of mass in the first quadrant are (XCM,YCM)=(2R,2R). Note: Always consider a small mass when determining the centre of mass.
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12.15 Each of the systems shown is initially at rest. Neglecting axle friction and the masses of the pulleys, determine for each system (a) the acceleration of block A, (b) the velocity of block A after it has moved through 10 ft, (c) the time required for block A to reach a velocity of 20 ft/s.
Answers
(a) The acceleration of block A is 10 ft/s^2.
(b) The velocity of block A after it has moved through 10 ft is 20 ft/s.
(c) The time required for block A to reach a velocity of 20 ft/s is 2 seconds.
How does acceleration work?
The rate at which an object's velocity with respect to time changes is referred to as accelerating in mechanics. It is a vector quantity to speed (in that they have magnitude and direction). The direction of the net force applied on an item determines the direction of its acceleration. According to Newton's Second Law, the amount of an organism's acceleration is the cumulative result of two causes:
(1) That item's mass, based on the materials from of which it is formed, — size is inversely related to the object's mass. (2) The net balance of all external forces acting against that object — magnitude is directly related to this net resultant force.
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Solve the differential equation by variation of parameters. (Use C1 and C2 as arbitrary constants.)
y'' − 16y = 16x/e^4x
Answers
Refer to the attached images. Final answer is circled.
customer instructions are key to a perfect delivery. true or false
Answers
It is true that following client instructions is essential for a flawless delivery. We need 8–15 seconds for eye-lead to use REPS and Checks to remove distractions.
For the first query, "Delivery," the topic is how to satisfy clients by delivering what they have requested. Therefore, by according to the customer's instructions, we can accomplish a flawless delivery.
For the second question, REPS and check means identifying the risks, removing them, making plans, and looking for space. It also means checking for yourself, the risks, the space, and the speed.
To prevent accidents while driving, the REPS and check procedure is employed as a safety measurement. The eye-lead varies depending on the route followed, but it typically lasts between 8 and 15 seconds.
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Luna drew a scale drawing of the high school. The parking lot, which is 54 meters wide in real life, is 102 centimeters wide in the drawing. What scale did luna use?.
Answers
Luna drew a scale drawing of the high school. The parking lot, which is 54 meters wide in real life, is 102 centimeters wide in the drawing. Scale drawings are used to draw shapes in a different proportional size and the scale used in the drawing is 17 centimeters : 9 meters
How to calculate the drawing's scale
The answer to the question is:
54 meters is the actual length.
Size of the scale is 102 centimeters.
The scale is thus:
Scale length equals real length.
This results
Scale: 54 meters at 102 millimeters.
shrink the scale
Scale: 9 meters = 17 millimeters
Your question is incomplete but most probably your full question was
Luna drew a scale drawing of the high school. The parking lot, which is 54 meters wide in real life, is 102 centimeters wide in the drawing. What scale did Luna use? 17 centimeters:___meters
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Which factor that affects income is out of a worker's personal control? a. educationb. location c. productivity d. politics
Answers
Economic downturn, politics and technology change are factors that affect income that is not within a workers control.
What are the economic factors affecting employment?A decline in the economy high level of productivity Cost of insurance rising Low demand for the products of the company. Productivity is the primary factor that influences how employees affect a firm. It goes without saying that motivated, enthusiastic, and engaged individuals produce more at work. In business, productive employees are priceless because they increase the company's revenue significantly. The job market is impacted by a number of things. These include the frequency of job changes, rates of unemployment and employment, immigration, income inequality, discrimination, seasonality, and the state of the economy as a whole. In business, productive employees are priceless because they increase the company's revenue significantly.To learn more about economic factors refer to:
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A beam has the extruded cross section shown below, where t-20 mm. 5t 2t t'2t % Matlab input: t-20; Mz-1793; Find y, i.e., the signed distance from the z'-axis to the z-axis, where z is the centroidal axis of the cross section. Determine the moment of inertia I with respect to the centroidal axis z. 6 x10° mm'4 Determine the absolute value of the maximum tensile normal stress σ when the cross-section is subject to the moment M2- 1793 N. m MPa
Answers
The spreadsheet listing the pairwise distances in miles between the top 100 US cities by population may be found in the attached Distances.xlsx file.
Below is a screenshot of the spreadsheet. The city names are formatted as follows in the first row and first column: Nashville, TN is an example of a city name, comma, and capitalized state abbreviation. Keep in mind that the spreadsheet's first cell, A1, is empty. Create the get distance function, which takes two character vector inputs representing the names of two cities, as its only parameter. As an output argument called distance, the function returns the separation in between them. Get distance("Seattle, WA","Miami, FL"), for instance, should return 3723. The function returns -1 if one or both of the provided cities are not found in the file.
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Would you expect the following species in a planar conformation to be aromatic, antiaromatic, or neither?
O antiaromatic O neither aromatic nor antiaromatic O aromatic
Answers
The species are arranged in such planar manner. neither antiaromatic nor aromatic
species definition
A species is a unit of biodiversity as well as the fundamental categorization and taxonomic rank of an organism in biology. The biggest collection of creatures in which any two persons of the right sexes or mating types may conceive a fertile child, typically by sexual reproduction, is referred to as a species. A species can also be identified by its karyotype, DNA sequence, anatomy, behaviour, or ecological habitat. In addition, since fossil reproduction cannot be studied, palaeontologists employ the chronospecies idea. There are approx 8 and 8.7 million different species of eukaryotes, based on the most current accurate estimate.
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The two blocks shown are originally at rest. Neglecting the masses of the pulleys and the effect of friction in the pulleys and between the blocks and the inclines, determine (a) the acceleration of each block, (b) the tension in the cable.
Answers
The acceleration of block A is 8.4949 and block B is 4.2475 ft/s² while the tension is the cable is 121.168 lb.
What is tension?When there are two forces acting on the ends of a cable, rope, wire, or string, it is said to be under tension. The cable has a one-direction pull along its entire length, pulling equally in both directions on objects at either end.
Tension can also be used to describe the forces that are acting on both ends of the two elements. In other words, tension's polar opposite is compression.
Physical objects must exert some force on one another in order to make contact with one another. Depending on the kind of object, each of these contact forces will be unique.
Take a section about the rope near block B and using the show datum
SB + (SB - SA) = l
2SB - SA = l
2SB - SA = 0
2aB - aA = 0
aA = 2aB
Take FBD of block-A
(Upward+) ∑Fₓ = mAaA
T - W[tex]_A[/tex]sin20° = mAaA
T - 200sin20° = (W[tex]_A[/tex]/g)(2aB)
T = 200sin20° + (W[tex]_A[/tex]/g)(2aB)
Take FBD of block-B;
(Downward+) ∑Fₓ = mBaB
W[tex]_B[/tex]cos20° - 2T = mAaA
300cos20° - 2(200sin20° + (W[tex]_A[/tex]/g)(2aB)) = (W[tex]_B[/tex]/g)(a[tex]_B[/tex])
300cos20° - 2(200sin20° + (200/32.2)(2aB)) = (300/32.2)(a[tex]_B[/tex])
a[tex]_B[/tex] = 4.2475 ft/s²
Acceleration of A is given as;
⇒ aA = 2aB
⇒ aA = 8.4949 ft/s²
Tension is given as;
T = 200sin20° + (200/32.2)(2(4.2475))
T = 121.168 lb
Thus, the acceleration of block A is 8.4949 and block B is 4.2475 ft/s² while the tension is the cable is 121.168 lb.
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In Assembly Language Please Write a program called "NumAverage" that inputs numbers (non-zero positive integers) from a user, averages those numbers, and then displays the result.The program should keep asking for new numbers until the user enters "q" (for quit) or any other character. At that time, the program should average all the numbers entered and display the result. You will need a counter to keep track of the how many numbers are entered. Make sure you display adequate instructions on how the program works. Also display an informative output.
Example: Enter a number: 32
Enter a number: 18
Enter a number: 10
Enter a number: q
The average of your numbers is: 20
================================
For ex write in java language
int sum =0 ; int i =0;
while (input != 'q'){
print(" Enter a number :");
input=next.Int();
sum =input + sum;
i++;}
print ("average number" + ( sum /i) );
Answers
To write a program called "NumAverage" that inputs numbers (non-zero positive integers) from a user, averages those numbers, and then displays the result, check the code given below.
What is program?A specific type of data made up of characters, numbers, and strings must be processed by programmers in order for the results to be useful, so programming languages are created and designed to assist in this process. The term "programme" refers to a collection of instructions that process data.
.MODEL SMALL
.DATA
VAL1 DB ?
NL1 DB 0AH,0DH,'ENTER HOW MANY NO U WANT:','$'
NL2 DB 0AH,0DH,'ENTER NO:','$'
cmp 0AH,Q
jmp
NL3 DB 0AH,0DH,'AVEARGE:','$'
.CODE
MAIN PROC
MOV AX,(atsymbol)DATA
MOV DS,AX
LEA DX,NL1
MOV AH,09H
INT 21H
MOV AH,01H
INT 21H
SUB AL,30H
MOV CL,AL
MOV BL,AL
MOV AL,00
MOV VAL1,AL
LBL1:
LEA DX,NL2
MOV AH,09H
INT 21H
MOV AH,01H
INT 21H
SUB AL,30H
ADD AL,VAL1
MOV VAL1,AL
LOOP LBL1
LBL2:
LEA DX,NL3
MOV AH,09H
INT 21H
MOV AX,00
MOV AL,VAL1
DIV BL
ADD AX,3030H
MOV DX,AX
MOV AH,02H
INT 21H
MOV AH,4CH
INT 21H
MAIN ENDP
END MAIN
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Problem 2: When the input to a given audio amplifier is 4cos(800nt) + cos (1000nt) mV, the
measured frequency component at 1000Hz is 1V and the ratio of the frequency components at
500 Hz to that at 1000 Hz is 0.002. Represent the amplifier output-input characteristic by
Uo (t) = aqui (t) + az lu; (t) ]2.
a) Evaluate the numerical values of a1, a2 from the test data given. This type of test is known
as the intermodulation distortion test.
b) What would you expect to be magnitudes of the frequency component at 800 Hz and at
1600 Hz?
Answers
The numerical values of a2 = 0.002*a1 / 16
The magnitudes of the frequency component at 800 Hz and at
1600 Hz are: 4²a2cos²(800nt) and 8²a2cos²(800nt)cos²(1000nt)
What is the numerical values?a) To evaluate the numerical values of a1 and a2, we can use the test data given. The measured frequency component at 1000 Hz is 1V, so we can set that as the value of a1cos(1000nt) in the amplifier output equation:
Uo(t) = a1cos(1000nt) + a2[4cos(800nt) + cos(1000nt)]²
The ratio of the frequency components at 500 Hz to that at 1000 Hz is 0.002, so we can use that to find the value of a2:
Uo(t) = a1cos(1000nt) + a2[4cos(800nt) + cos(1000nt)]²
= a1cos(1000nt) + a2[16cos²(800nt) + 8cos(800nt)cos(1000nt) + cos²(1000nt)]
= a1cos(1000nt) + a2(16cos²(800nt) + 8cos(800nt)cos(1000nt) + cos²(1000nt))
The frequency component at 500 Hz is the second harmonic of the 800 Hz component and is given by 16cos²(800nt), so we can compare it to the 1000 Hz component:
16cos²(800nt) = 0.002 * a1cos(1000nt)
a2 = 0.002*a1 / 16
b) Since the input to the amplifier is a sum of cosine functions with different frequencies, the output will also be a sum of cosine functions with the same frequencies, but with different amplitudes.
The 800 Hz component in the input is 4cos(800nt) and is squared in the output equation, so the 800 Hz component in the output will be 4^2a2cos^2(800nt) which is a smaller amplitude than the 800 Hz component in the input.
The 1600 Hz component in the input is created by the product of the 800 Hz component and the 1000 Hz component, which is 8cos(800nt)cos(1000nt) and is squared in the output equation. so the 1600 Hz component in the output will be 8^2a2cos^2(800nt)cos^2(1000nt) which is even smaller than the 800 Hz component in the input.
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A burn-off tet wa performed to determine the volume fraction of
contituent in a gla-fiber-reinforced epoxy compoite. The following
obervation were made:
Weight of empty crucible = 47. 6504 g
Weight of crucible and a mall piece of compoite = 50. 1817 g
Weight of crucible and gla after the burn-off = 49. 4476 g
Calculate the weight and volume fraction of gla fiber and epoxy
rein. Aume that the denitie of the fiber and rein are 2. 5 and 1. 2
gl cm3, repectively
Answers
Volume fraction=1.175.
Explanation:
Given:
Weight of empty crucible=47. 6504 g.
Weight of crucible and piece of composite= 50. 1817 g
Weight of crucible and glass after burn-off = 49. 4476 g
weight and volume fraction of glass fiber and
epoxy resin= w glass/w resin
w resin=50. 1817 g- 49. 4476 g = 0.7341 g
w glass=49. 4476 g-47. 6504 g = 1.7972 g
w fraction=1.7972 g/0.7341 g=2.448
Now,
volume of glass fiber=1.7972 g/2.5g/cm^ 3
=0.7188 cm^ 3
volume of epoxy resin=0.7341 g/1.29/cm^ 3
=0.61175 cm^ 3
Volume fraction=v glass/v epoxy resin=0.7188/0.61175cm^ 3
Volume fraction=1.175.
The volume fraction (percentage by volume) is one way to express the composition of a mixture with a dimensionless quantity; others are the mass fraction (percentage by weight) and mole fraction (percentage by moles)
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2 psia is equivalent to
A. 29 in. Hg.
B. 28 in. Hg.
C. 27 in. Hg.
D. 26 in. Hg.
Answers
In order to determine absolute pressure, a complete vacuum is used. While the average atmospheric surface pressure is approximately 14.7 PSIA.
The pressure in a vessel absolutely devoid of any air molecules would be 0 PSIA. PSIA stands for absolute pounds per square inch. Absolute pressure is the pressure exerted with relation to absolute zero or vacuum. Engineering documents or P&IDs might employ PSIA. Pounds per square inch gauge is referred to as PSIG. PSIA is a word used to describe absolute pressure in PSI, which includes atmospheric pressure. "Total pressure" is another name for absolute pressure. We add 14.7 PSI since this atmospheric pressure is comparable to 14.7 PSI at sea level. Higher heights have lower atmospheric.
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. There are given three numbers: A, B and C. Even if one of them equal 5 output TRUE, othewise output FALSE.
Answers
This can be achieved through a variety of programming languages, here's an example using Python:
A = 4
B = 5
C = 6
if A == 5 or B == 5 or C == 5:
print("TRUE")
else:
print("FALSE")
What is a programming language?A formal language with many instructions is referred to as a programming language. These guidelines are presented to find different outputs. Computer programs are the main use of programming languages. A set of guidelines are presented to ensure the computer's proper operation.
Programming languages are used to control the external devices. In this example, the code checks if any of the variables A, B, or C is equal to 5. If any of them are, the code will output "TRUE", otherwise it will output "FALSE".
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Gain bode diagram of minimum phase as follow dash line is original L0(w0), solid line is compensated L(w)
Answers
The amount of gain that can be raised or lowered without causing the system to become unstable is referred to as the gain margin.
What is the gain in a Bode diagram?The gain margin is the maximum gain that can be achieved without causing the system to become unstable. Typically, a magnitude in dB is used to express it. Usually, the Bode plot can be used to immediately read the gain margin.Remember that the magnitude Bode plot moves upward as we increase system gain. Additionally, the crossover frequency is shifted to the right. Phase margin indicates relative stability, or the propensity to oscillate during its damped response to an input change like a step function. Typically, when the crossover frequency advances to the right, the crossover frequency approaches the frequency where the phase is -180 degrees. Gain margin shows unwavering stability and the maximum amount that the system can oscillate.
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A bar having the cross section shown has been formed by securely bonding brass and aluminum stock. Taking h=9 mm and using the data given below, determine the largest permissible bending moment when the composite bar is bent about a horizontal axis. Brass h Aluminium 30 mm 30 min Aluminum Brass . Modulus of elasticity 70 GPa 105 GPa Allowable stress 100 MPa 160 MPa
The largest permissible bending moment is____ KN m
Answers
According to the question, the largest permissible bending moment is 1382.5 KN m.
What is bending moment?
Bending moment is a mechanical force that causes a bending or flexing effect on a structural element such as a beam, resulting in the creation of a moment or torque about the element's neutral axis. It is calculated based on the internal forces acting on the element, such as the weight of the beam and the force of the load applied to it. Bending moment can be positive or negative, depending on the direction of the force and the location of the neutral axis.
M = (h×A×E×σ_allowable)/6
M = ((9mm×30mm×70GPa×100MPa)+(9mm×30mm×105GPa×160MPa))/6
M = 1382.5 KN m
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In the figure, G1 is represented by which numbered part(s) of the cycle?
Answers
According to the figure, G1 is represented by parts 4, 5, and 6 numbered part(s) of the cycle.
What is numbered part?
Numbered parts are individual parts of a larger item that are identified by a unique numerical identifier. This number can be used to easily locate and identify the part within the larger item. Numbered parts are often used in complex systems, such as machines, tools, vehicles, and buildings, where multiple components must be located and identified quickly and accurately. For example, a car engine may have hundreds of different numbered parts, each with its own unique identifier. Numbered parts also make it easier for manufacturers to track and inventory the parts used in their products. This helps them to ensure that the right parts are in place and available when they are needed.
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Assume the temperature of the exhaust in an exhaust pipe can be approximated by T = T0(1 + ae-bx)[1 + c cos(omega t)], where T0 = 100 degree C, a = 3, b = 0.03 m-1, c = 0.05, and omega = 100 rad/s. If the exhaust speed is a constant 2 m/s, determine the time rate of change of temperature of the fluid particles at x = 0 and x = 4 m when t = 0. Is the flow steady or unsteady? If unsteady what causes it?
Answers
according to the given statement, The flow is unsteady, caused by the periodic term c*cos(omega*t).
What is flow?Flow is a psychological concept that describes an optimal state of consciousness in which a person becomes fully immersed in an activity. It is characterized by a sense of heightened focus, complete absorption, and an energized feeling of being in control. Flow is often associated with activities such as playing an instrument, writing, painting, or any other creative endeavor. It is also associated with sports and exercise, and may be experienced during meditation. Achieving flow is thought to bring about benefits such as increased motivation, creativity, and productivity, as well as improved mental and physical wellbeing.
At x=0:
dT/dt = -300 c sin(100t)
At x=4:
dT/dt = -120 c sin(100t)
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List the point coordinates for all atoms that are associated with the FCC unit cell (See Figure a) (b Figure 3.1 Face centered cubic crystal structure, (a) a hard sphere unit cell representation, (b) a reduced-sphere unit cell, and (c) an aggregate of many atoms.
Answers
The point coordinates for all atoms that are associated with the FCC unit cell, i.e. fig b are:
bottom face: (1,0,0) (1,1,0) (0,1,0) (1/2,1/2,0)
Tope face: (0,0,1) (1,0,1) (1,1,1) (0,0,1) (1/2,1/2,1)
front and back face: (1/2,1,1/2) (1/2,0,1/2)
Left and Right face: (0,1/2,1/2) (1,1/2,1/2)
What is FCC unit cell?Atoms are found in an FCC unit cell at the centre of each cube's face and at each of the crystal lattice's four corners. Only half of each atom, which is located at the face centre, belongs to one particular cell and is shared by two adjacent unit cells.
A crystal lattice in an FCC unit cell contains atoms in each corner. Additionally, every cube face has an atom in the centre of it. Two next-to-one another unit cells share this face-center atom. A unit cell only contains 12 of each atom.
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A child having a mass of 50 kg holds her legs up as shown as she swings downward from rest at ?1=30o . Her center of mass is located at point G1 (a radius of 2.8 m from the origin). When she is at the bottom position of ?=0o , she suddenly lets her legs come down, (approximately instantaneously) shifting her center of mass to position G2 (a radius of 3 m from the origin). Determine her speed in the upswing immediately following the change in the position of her center of mass. (Think about what quantity has changed now that her center of mass is further from origin.) Also find the angle ?2 to which she swings before momentarily coming to rest. Treat the child’s body as a particle. HINT: Think about this problem in 3 phases: 1) Swinging from initial position to vertical position with legs up, 2) Instantaneously bending legs while in vertical position, and 3) swinging from vertical to final position with legs bent.....Answer: v2 = 2.53 m/s, ?2=27o......Please show a clear and understandable solution
Answers
For a kid weighing 50 kg, does she hold her legs up when she swings down from rest at? 1 = 30° and Ф2 = 27°
Fint prior to = 0 T1 9V1 = T2 + V2 0 + 2.8 (1-cos30) (50) 9.81 = 1/2 (50) (50) V12 plus 0 V1 equals 2.713 m/sec
H1 = H2 \s50(2.713)(2.8) = 50 V2 (3) (3)
V2 = 2.532 =2.53 m/sec immediately following = 0, T2 +V2 = T2, V3 1/2 850(2.532)2, and 50(9/81)(3). (1-cos02)
27 degree is equal to 0.1089 = 1-cos02 2.
Children grow and develop in certain ways. They must be able to sit up on their own, for instance, before they can swings and subsequently walk. The same is true for how they master penmanship. Before the child can write, they tear, cut, and scribble on things. Before kids can hold a pencil and form readable symbols, called letters, in their hands, they must first develop the tiny muscles (fine motor muscles).
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a limitation of the family systems model is:
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answer:
A limitation of the family systems model is: A particular family member's needs may be overshadowed by the needs of the system.
Your organization is in the process of microfilming all the old records in storage. The budget for this process is $500,000 over three years. You have contracted with a company to perform the microfilm services at $0.09 per page and have estimated that there are about 5.5 million pages to be converted. At the end of the first year, you review the invoice and see that you have been billed for converting 2,083,333 pages. 1. Determine your budget variance and what type it is. 2. Provide a short explanation that can be given to administration regarding the variance.
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Where would an engineer indicate the unit of measurement used in a design
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An engineer would indicate the unit of measurement used in a design in millimeters.
What are measurements?The primary unit of measurement is the stocking unit of measure for a given item in a specific organization. You must define an item attribute that serves as the primary unit of measurement when creating each item.
Because the technical drawings are scaled, engineers, architects, and builders may create the items according to exact specifications.
When understanding scales, the number on the left relates to the measurement of the drawing, while the number on the right represents the actual size of the object.
Therefore, a millimeter is used in a design.
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PROBLEM 6.32 For The Given Loading, Determine The Zero - Force Members In Each Of The Two Trusses Shown.
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For The Given Loading, Truss A: AB, CD, EF ,Truss B: AB, CD, EF, GH .
What is force ?A push is an effect that can alter an object's motion according to physics. A force may cause an object with mass to accelerate when it changes its velocity, for as when it drifts away from rest. A known way to describe force is as a push or a pull. A vector quantity, it has both direction and magnitude. It is computed using the newton SI unit (N). Force is represented by the letter F. (formerly P).
What force is the strongest?The four forces are the electromagnetic force, gravity, the weak nuclear force, and the strong nuclear force, in that order.
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A bimetal fan/limit switch cycles the blower using
A. time on–time off.
B. time on–temperature off.
C. temperature on–time off.
D. temperature on–temperature off.
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D. the temperature being on or off. Near the heat exchanger, the airstream contains a bimetal helix. It is a switch component that senses temperature.
The furnace fan limit switch, to put it simply, is a control that instructs your furnace's fan when to turn on and off. Therefore, it instructs the blower to turn off and stop pumping cold air into your home while the furnace is off, and to turn on and specific doing so when the furnace is on. Most furnace fan limit switches have three typical settings: 200°F to turn off the burner, 130°F to turn off the blower, and 100°F to turn it back on.
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Why is possessing an ASE certification important to one's future as a technician?
Select one:
O a. Leads to better employment opportunities
O b. Allows the technician to transport raw materials to factories
O C.
Technicians gain firsthand experience in communicating effectively with customers in
person
O d. Leads to apprenticeship opportunities
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Note that possessing an ASE Certification is crucial because; " Leads to better employment opportunities." (Option D)
What is an ASE Certification?ASE certification, commonly known as Automobile Service Excellence, is given to an automotive mechanic who has finished the necessary training and acquired their Automotive Service Excellence Certified Master Technicians criteria.
There are 58 ASE certification examinations available, covering nearly every facet of the automobile repair and service sector.
The National Institute for Automotive Service Excellence (ASE) offers four levels of certification. They are:
ASE entry-level certification, Professional technician certification, Master technician certification, and ASE advanced level specialist certification.Learn more about ASE Certification:
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When is Environmental Impact Assessment start?
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Explanation:
Since the 1960s, environmental impact assessments have been part of increasing awareness of the environment. In an EIA, the impacts of a proposed construction or development project are assessed. As a result of EIAs, objective decision-making can be achieved through technical evaluations. The National Environmental Policy Act of 1969 gave EIA formal status in the United States. Globally, EIAs are becoming more common. Environmental assessments have vastly outnumbered more rigorous environmental impact statements every year. An environmental assessment is a "mini-Environmental Impact Statement" designed to provide sufficient information to enable an agency to decide whether to prepare a full-blown EIS.
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A pipeline, used for the transport of crude oil, is buried in the earth such that its centerline is a distance of 1.5m below the surface. The pipe has an outer diameter of 0.5 m and is insulated with a layer of cellular glass 100 mm thick. What is the heat loss per unit length of pipe when heated oil at 120 C flows through the pipe and the surface of the earth is at a temperature of 0 C?
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To get the heat loss of an entire building, you divide the building into areas that have the same U value, and then add them all up to get the total heat loss.
How do you calculate heat loss?Q=U*A*T, or more simply put, the heat loss of an area of size A is determined by the U value of the materials and the temperature difference between inside and outside (i.e., the temperature difference between the two surfaces, not the two air temperatures).
You must divide a building into sections with the same U value in order to calculate the overall heat loss for the entire structure.
Thermal conductivity is the ability of an object to transfer thermal energy into another object when it comes into touch with one that is at a lower temperature. A cylinder's energy transfer rate while its contents are at high temperatures
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Use the formula method to determine the resultant force that this liquid exerts on plate B.
Use the formula method to determine the location of the resultant force that this liquid exerts on plate B measured from the bottom of the tank.
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The force that this liquid ultimately exerts on plate B is therefore: F = 1000 kg/m3 9.8 m/s2 0.5 m2 2 m = 98 N
How does force work?A push is an effect that can alter an object's motion according to physics. A force may cause an object with mass to accelerate when it changes its velocity, for as when it drifts away from rest. A known way to describe force is as a push or a pull. A vector quantity, it has both direction and magnitude. It is computed using the newton SI unit (N). Force is represented by the letter F. (formerly P).
What three qualities do all forces share?Forces are always strong and have a purpose. As seen in the video whenever Zoe softly strikes the golf ball, forces can be mild. Or even a force can indeed be strong, as in the case of Izzy's powerful strike on the ball. Forces have a direction as well.
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