Tutorials in Introductory Physics
1st Edition
ISBN: 9780130970695
Author: Peter S. Shaffer, Lillian C. McDermott
Publisher: Addison Wesley
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Chapter 27.2, Problem 2cTH
(i)
To determine
The nature of work done for the process I.
(ii)
To determine
The nature of work done for the process II.
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The magnitude of the net force exerted in the x direction on a 3.00-kg particle varies in time as shown in the figure below.
F(N)
4
3
A
2
t(s)
1
2 3
45
(a) Find the impulse of the force over the 5.00-s time interval.
==
N⚫s
(b) Find the final velocity the particle attains if it is originally at rest.
m/s
(c) Find its final velocity if its original velocity is -3.50 î m/s.
V₁
m/s
(d) Find the average force exerted on the particle for the time interval between 0 and 5.00 s.
=
avg
N
••63 SSM www In the circuit of
Fig. 27-65, 8 = 1.2 kV, C = 6.5 µF,
R₁
S
R₂
R3
800
C
H
R₁ = R₂ = R3 = 0.73 MQ. With C
completely uncharged, switch S is
suddenly closed (at t = 0). At t = 0,
what are (a) current i̟ in resistor 1,
(b) current 2 in resistor 2, and
(c) current i3 in resistor 3? At t = ∞o
(that is, after many time constants), what are (d) i₁, (e) i₂, and (f) iz?
What is the potential difference V2 across resistor 2 at (g) t = 0 and
(h) t = ∞o? (i) Sketch V2 versus t between these two extreme times.
Figure 27-65 Problem 63.
Thor flies by spinning his hammer really fast from a leather strap at the end of the handle, letting go, then grabbing it and having it pull him. If Thor wants to reach escape velocity (velocity needed to leave Earth’s atmosphere), he will need the linear velocity of the center of mass of the hammer to be 11,200 m/s. Thor's escape velocity is 33532.9 rad/s, the angular velocity is 8055.5 rad/s^2. While the hammer is spinning at its maximum speed what impossibly large tension does the leather strap, which the hammer is spinning by, exert when the hammer is at its lowest point? the hammer has a total mass of 20.0kg.
Chapter 27 Solutions
Tutorials in Introductory Physics
Ch. 27.1 - Prob. 1aTHCh. 27.1 - In this process, which of the quantities P, V, n,...Ch. 27.1 - Consider the following incorrect student...Ch. 27.1 - Explain why it is not possible to use the ideal...Ch. 27.1 - A long pin is used to hold the piston in place as...Ch. 27.1 - A long pin is used to hold the piston in place as...Ch. 27.1 - Prob. 2cTHCh. 27.2 - Prob. 1aTHCh. 27.2 - Prob. 1bTHCh. 27.2 - Prob. 1cTH
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