Answer:
(a) -55.6%, -31.25 V
(b) -11.1%, -6.25 V
(c) -0.93%, -0.52 V
Explanation:
The open-circuit voltage is (75V)(750/(250+750)) = 56.25 V.
The circuit to which the meter is connected has a Thevenin equivalent impedance of 1/(1/250 +1/750) = 187.5 kΩ. So, the relative error for a given meter impedance of R (in kΩ) is ...
(R/(R +187.5) -1) × 100% = -187.5/(R +187.5) × 100%
(a) For a meter impedance of (1 kΩ/V)×150V = 150 kΩ, the error is ...
-187.5/(150 +187.5) × 100% ≈ -55.6%
The voltage error is (56.25 V)(-55.6%) = -31.25 V.
__
(b) For a meter impedance of (20 kΩ/V)×75V = 1500 kΩ, the error is ...
-187.5/(1500+187.5) × 100% ≈ -11.1%
The voltage error is (56.25 V)(-5.88%) = -6.25 V.
__
(c) For a meter impedance of 20,000 kΩ, the error is ...
-187.5/(20000+187.5) × 100% ≈ -0.93%
The voltage error is (56.25 V)(-0.93%) = -0.52 V.
Consider a hot working operation in which there is no work hardening, but the flow stress is sensitive to the strain rate. Calculate the maximum strain rate that can be used in the deformation if the flow stress cannot exceed 210 MPa. The strength constant is 175 MPa, and the strain rate sensitivity exponent is 0.1. Assume that there is no effect of friction with the tooling. (2 points)
Explanation:
You can use Hollomon's equation to estimate this.
Y_f is the flow stress.
K is the strenght coefficient or constant.
e is the strain
n is the strain hardening exponent.
You should be able to solve for e given the data in the problem statement.
What musical form do you hear in Candle in the Wind?
During a storm, gage station A was inoperative but the surrounding stations, B, C, and D, recorded rainfall of 5.2, 4.5, and 6.1 in., respectively. The average annual precipitation for stations A, B, C, and D are 48, 53, 59, and 67 in., respectively. Estimate the storm precipitation for station A.
Answer:
4.247 in
Explanation:
Precipitation at A is P_a
similarly at P_b= 5.2 in, P_c= 4.5 in and P_d= 6.1 in
Normal annual rainfall at station A, B, C, D are
N_a = 48 in, N_b= 53, N_c= 59 in and N_d= 67 in
From the formula we have
P_a/N_a = 1/3( P_b/N_b+P_c/N_c+P_d/N_d)
⇒ P_a = 48/3(5.2/53+4.5/59+6.1/67)
P_a= 16×0.2654 = 4.247 in
applications of fleming hand rule
Answer:
Fleming hand rule represents the direction of current in a generator's windings and induced current as a conductor is attached to a circuit such that it moves in a magnetic field.
Explanation:
Fleming hand rule represents the direction of current in a generator's windings and induced current as a conductor is attached to a circuit such that it moves in a magnetic field.
Fleming hand rule is used in the case of electric motors and electric generators.
Fleming hand rule is used to determine the following:
1. Direction of torque
2. Angular velocity
3. Angular acceleration
Zack's new home is progressing well, and the foundation work is finished. The general contractor stops by Zack's present home to let him know that the lumber order will be dropped off in two days. Almost as a side comment, the contractor asks if Zack has decided what he wants for wall sheathing. Zack says he is not sure what would be best and asks for a recommendation. What do you think the contractor will offer as options? Which option would be best?
Answer:
hahajajskekjekdjwjhjdjdjsiahshjsjs
thank me later
HURRY :)) In low light, it's _____ to see details, colors, and distant objects. FYI it's ed drivers!!!! A. Easier B. Harder C. Just as easy D. Impossible
Answer:
harder
Explanation:
Answer:
light
Explanation:
Technician A says that in a circuit that has 3 Ohms of resistance and operates on 12 volts, the amperage must be 4 amps. Technician B says that in a circuit has 3 Ohms of resistance and operates on 24 volts, the amperage must be 12 amps. Who is correct?
The technician that gave the correct statement is Technician A
Determination of the current in the circuit for technician AFrom the question given above, the following data were obtained:
Resistance (R) = 3 OhmsVoltage (V) = 12 VCurrent (I) =?V = IR
12 = I × 3
Divide both side by 3
I = 12 / 3
I = 4 A
Thus, technician A is correct.
Determination of the current in the circuit for technician BFrom the question given above, the following data were obtained:
Resistance (R) = 3 OhmsVoltage (V) = 24 VCurrent (I) =?V = IR
24 = I × 3
Divide both side by 3
I = 24 / 3
I = 8 A
Thus, technician B is wrong as the current in the circuit is 8 A and not 12 A.
From the calculations made above, we can conclude that technician A is correct.
Learn more about ohm's law:
https://brainly.com/question/104895
Which of the following correctly describes caster?
A) The amount of tilt in the steering knuckle or steering axis from true vertical as viewed
from the side of the vehicle.
B) The inward or outward tilt of the top of the wheel from true vertical as viewed from the
front of the vehicle.
C) The amount that the wheels point inward or outward as viewed from the top of the
wheel looking down
D) The tilt of the steering axis when viewed from the front of the vehicle,
1. Technician A says an automotive computer can scan its input and output circuits to detect incorrect voltage problems. Technician B says an automotive computer can scan its input and output circuits to detect an incorrect resistance problem. Who is right? (A) A only. (B) B only. (C) Both A and B. (D) Neither A nor B.
In the given case, Technician B is right, as according to Technician B, an automobile computer may scan its input and output circuits for an improper resistance problem.
Who is Technician?A technician is a worker in a technological sector who is skilled in the appropriate skill and technique and has a practical comprehension of the theoretical concepts.
We also require professionals that have been adequately trained to work on, repair, and maintain the equipment. Machines that receive proper care will work more smoothly, increasing productivity on the job site while also helping to keep personnel safe.
A technician is a professional worker who install, fixes, replaces, and serves many sorts of equipment and systems. A technician spends his or her day doing various duties, depending on the situation, such as assessing issues, executing tests, and fixing equipment.
Therefore, option B is correct.
Learn more about the Technician, refer to:
https://brainly.com/question/14290207
#SPJ5
what is the relationship of waste management and bioremediation?
Answer:
In the simplest terms, bioremediation is a waste management process using live organisms to neutralize or remove harmful pollutants from contaminated areas. Bioremediation is an environmental science that amplifies natural biological actions to remedy or remediate polluted groundwater and contaminated soil.
Explanation:
In the simplest terms, bioremediation is a waste management process using live organisms to neutralize or remove harmful pollutants from contaminated areas. Bioremediation is an environmental science that amplifies natural biological actions to remedy or remediate polluted groundwater and contaminated soil.
The direction of rotation of a three-phase squirrel-cage induction motor depends on the a) residual magnetism in the squirrel-cage motor b) interaction of the stator and rotor magnetic fields c) design of the induction motor d) phase sequence of the voltage applied to the motor stator windings
Answer:
d) phase sequence of the voltage applied to the motor stator windings
Explanation:
The direction of rotation of a three-phase squirrel-cage induction motor depends on the phase sequence of the voltage applied to the motor stator windings.
TUICUS
4. What are the physical meanings of the Lennard-Jones parameters and how can they be deter-mined from viscosity data? Is the determination unique?
Answer:
yea of cose you can do it physical inwesment a long risalt can wery high coletty so do it you can