College Physics
7th Edition
ISBN: 9780321601834
Author: Jerry D. Wilson, Anthony J. Buffa, Bo Lou
Publisher: Addison-Wesley
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Chapter 7, Problem 52E
(a)
To determine
The
(b)
To determine
The centripetal acceleration of the simple pendulum.
(c)
To determine
The tension in string.
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Problem 31.66 3 of 3 Review Introduction Consider current I passing through a resistor of radius r , length L , and resistance R .
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Part B Determine the magnetic field at the surface of the resistor. Assume that the electric field is uniform throughout, including at the surface.
Express your answer in terms of some, all, or none of the variables I, R, L, r, and the constants π, μ0.
Part C Determine the strength of the Poynting vector at the surface of the resistor.
Express your answer in terms of some, all, or none of the variables I, R, L, r, and the appropriate constants.
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Determine the flux of the Poynting vector (i.e., the integral of S⃗ ⋅dA⃗ ) over the surface of the resistor.
Express your answer in terms of some, all, or none of the…
Steel train rails are laid in 15.0-m-long segments placed end to end. The rails are laid on a winter day when their
temperature is -1.0 °C.
Part A
How much space must be left between adjacent rails if they are just to touch on a summer day when their
temperature is 34.0°C?
Express your answer to two significant figures and include the appropriate units.
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D= 0.0072
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If the rails are originally laid in contact, what is the stress in them on a summer day when their temperature is
34.0°C?
Express your answer using two significant figures. Enter positive value if the stress is tensile and negative
value if the stress is compressive.
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Constants
A glass flask whose volume is 1000.00 cm³ at 0.0°C is completely filled with mercury at this temperature. When flask
and mercury are warmed to 54.5 °C, 8.75 cm³ of mercury overflow.
Part A
If the coefficient of volume expansion of mercury is 18.0 × 10-5 K-1, compute the coefficient of volume expansion
of the glass.
ΕΠΙ ΑΣΦ
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Chapter 7 Solutions
College Physics
Ch. 7 - Prob. 1MCQCh. 7 - For the polar coordinates of a particle traveling...Ch. 7 - Prob. 3MCQCh. 7 - Prob. 4MCQCh. 7 - Prob. 5MCQCh. 7 - Prob. 7MCQCh. 7 - Uniform circular motion requires (a) centripetal...Ch. 7 - Prob. 9MCQCh. 7 - Prob. 10MCQCh. 7 - Prob. 11MCQ
Ch. 7 - Prob. 12MCQCh. 7 - Prob. 13MCQCh. 7 - For uniform circular motion, (a) α = 0, (b) ω = 0,...Ch. 7 - Prob. 15MCQCh. 7 - Prob. 16MCQCh. 7 - Prob. 17MCQCh. 7 - Prob. 18MCQCh. 7 - Prob. 19MCQCh. 7 - Prob. 20MCQCh. 7 - Prob. 1CQCh. 7 - Prob. 2CQCh. 7 - Prob. 3CQCh. 7 - Prob. 4CQCh. 7 - Prob. 5CQCh. 7 - Prob. 6CQCh. 7 - Prob. 7CQCh. 7 - Prob. 8CQCh. 7 - Prob. 9CQCh. 7 - On the rotating Earth, at what location(s) would a...Ch. 7 - Prob. 11CQCh. 7 - Prob. 12CQCh. 7 - Prob. 13CQCh. 7 - Prob. 14CQCh. 7 - Prob. 15CQCh. 7 - Prob. 16CQCh. 7 - Prob. 17CQCh. 7 -
Weighing yourself at a park in Ecuador through...Ch. 7 - Prob. 19CQCh. 7 - Prob. 20CQCh. 7 - Prob. 1ECh. 7 - Prob. 2ECh. 7 - Prob. 3ECh. 7 - Prob. 4ECh. 7 - Express the following angles in degrees, radians,...Ch. 7 - Prob. 6ECh. 7 - Prob. 7ECh. 7 - The hour, minute, and second hands on a clock are...Ch. 7 - A car with a 65-cm-diameter wheel travels 3.0 km....Ch. 7 - Prob. 10ECh. 7 - Prob. 11ECh. 7 - Prob. 12ECh. 7 - Prob. 13ECh. 7 - Prob. 14ECh. 7 - Prob. 15ECh. 7 - Prob. 16ECh. 7 - Prob. 17ECh. 7 - A computer DVD-ROM has a variable angular speed...Ch. 7 - Prob. 19ECh. 7 - Prob. 20ECh. 7 - Prob. 21ECh. 7 - Prob. 22ECh. 7 - Prob. 23ECh. 7 - Prob. 24ECh. 7 - Prob. 25ECh. 7 - Prob. 26ECh. 7 - Prob. 27ECh. 7 - The driver of a car sets the cruise control and...Ch. 7 - Prob. 29ECh. 7 - Prob. 30ECh. 7 - A wheel of radius 1.5 m rotates at a uniform...Ch. 7 - Prob. 32ECh. 7 - Prob. 33ECh. 7 - Imagine that you swing about your head a ball...Ch. 7 - Imagine that you swing about your head a ball...Ch. 7 - Prob. 36ECh. 7 - Prob. 37ECh. 7 - Prob. 38ECh. 7 - Prob. 39ECh. 7 - Prob. 40ECh. 7 - A block of mass m slides down an inclined plane...Ch. 7 - Prob. 42ECh. 7 - Prob. 43ECh. 7 - Prob. 44ECh. 7 - Prob. 45ECh. 7 - A flywheel rotates with an angular speed of 25...Ch. 7 - Prob. 47ECh. 7 - Prob. 48ECh. 7 - Prob. 49ECh. 7 - In the spin-dry cycle of a modern washing machine,...Ch. 7 - Prob. 51ECh. 7 - A simple pendulum of length 2.00 m is released...Ch. 7 - Prob. 53ECh. 7 - The gravitational forces of the Earth and the Moon...Ch. 7 - Prob. 55ECh. 7 - Prob. 56ECh. 7 - Prob. 57ECh. 7 - A man has a mass of 75 kg on the Earth’s surface....Ch. 7 - Prob. 59ECh. 7 - Prob. 60ECh. 7 - During the Apollo lunar explorations of the late...Ch. 7 - Prob. 62ECh. 7 - Prob. 64ECh. 7 - Prob. 65ECh. 7 - Prob. 66ECh. 7 - Prob. 67ECh. 7 - Prob. 68ECh. 7 - Prob. 69ECh. 7 - Prob. 70ECh. 7 - Prob. 71ECh. 7 - Prob. 72ECh. 7 - Prob. 73ECh. 7 - Prob. 75ECh. 7 - Prob. 76ECh. 7 - Prob. 77ECh. 7 - Prob. 79E
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