Bundle: Understanding Motor Controls, 4th + Mindtap Electrical, 2 Terms (12 Months) Printed Access Card
4th Edition
ISBN: 9780357097755
Author: Stephen L. Herman
Publisher: Cengage Learning
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Chapter 11, Problem 8RQ
Refer to the circuit shown in Figure 11–23. What is the function of resistor R3 in the circuit?
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I tried solving this one but have no idea where I went wrong can you please help me out with this?
Question 1.
A tube rotates in the horizontal xy plane with a constant angular velocity w about the z-axis. A
particle of mass m is released from a radial distance R when the tube is in the position shown.
This problem is based on problem 3.2 in the text.
y
ω
R
m
2R
Figure 1
X
a) Draw a free body diagram of the particle if the tube is frictionless.
b) Draw a free body diagram of the particle if the coefficient of friction between the sides of the
tube and the particle is μs = flk = fl.
c) For the case where the tube is frictionless, what is the radial speed at which the particle
leaves the tube?
d) For the case where there is friction, derive a differential equation that would allow you to
solve for the radius of the particle as a function of time. I'm only looking for the differential
equation. DO NOT solve it.
e) If there is no friction, what is the angle of the tube when the particle exits?
• Hint: You may need to solve a differential equation for the last part. The "potentially…
I tried this problem but I can't seem to figure out what I am missing here can you please help me?
Chapter 11 Solutions
Bundle: Understanding Motor Controls, 4th + Mindtap Electrical, 2 Terms (12 Months) Printed Access Card
Ch. 11 -
What are the two basic classifications of...Ch. 11 - Explain the operation of an on-delay relay.
Ch. 11 - Prob. 3RQCh. 11 - Prob. 4RQCh. 11 - How are pneumatic timers adjusted?Ch. 11 -
Name two methods used by electronic timers to...Ch. 11 - Refer to the circuit shown in Figure 1123. What is...Ch. 11 - Refer to the circuit shown in Figure 1123. What is...Ch. 11 - Refer to the circuit shown in Figure 1123. What is...Ch. 11 - Prob. 10RQ
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