Physics
7th Edition
ISBN: 9780321625915
Author: Douglas C. Giancoli
Publisher: PEARSON
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Chapter 12, Problem 45P
To determine
The intensities of the first two overtones of a violin compared to the fundamental.
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Portfolio Problem 3. A ball is thrown vertically upwards with a speed vo
from the floor of a room of height h. It hits the ceiling and then returns to the
floor, from which it rebounds, managing just to hit the ceiling a second time.
Assume that the coefficient of restitution between the ball and the floor, e, is
equal to that between the ball and the ceiling. Compute e.
Portfolio Problem 4. Consider two identical springs, each with natural length
and spring constant k, attached to a horizontal frame at distance 2l apart. Their
free ends are attached to the same particle of mass m, which is hanging under
gravity. Let z denote the vertical displacement of the particle from the hori-
zontal frame, so that z < 0 when the particle is below the frame, as shown in
the figure. The particle has zero horizontal velocity, so that the motion is one
dimensional along z.
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(a) Show that the total force acting on the particle is
X
F-mg k-2kz 1
(1.
l
k.
(b) Find the potential energy U(x, y, z) of the system such that U
x = : 0.
= O when
(c) The particle is pulled down until the springs are each of length 3l, and then
released. Find the velocity of the particle when it crosses z = 0.
In the figure below, a semicircular conductor of radius R = 0.260 m is rotated about the axis AC at a constant rate of 130 rev/min. A uniform magnetic field of magnitude 1.22 T fills the entire region below the axis and is directed out of the page.
R
Pout
(a) Calculate the maximum value of the emf induced between the ends of the conductor.
1.77
v
(b) What is the value of the average induced emf for each complete rotation?
0
v
(c) How would your answers to parts (a) and (b) change if the magnetic field were allowed to extend a distance R above the axis of rotation? (Select all that apply.)
The value in part (a) would increase.
The value in part (a) would remain the same.
The value in part (a) would decrease.
The value in part (b) would increase.
The value in part (b) would remain the same.
The value in part (b) would decrease.
×
(d) Sketch the emf versus time when the field is as drawn in the figure. Choose File No file chosen
This answer has not been graded yet.
(e) Sketch the emf…
Chapter 12 Solutions
Physics
Ch. 12 - Prob. 1OQCh. 12 - Prob. 1QCh. 12 - Prob. 2QCh. 12 - Prob. 3QCh. 12 - When a sound wave passes from air into water, do...Ch. 12 - What evidence can you give that the speed of sound...Ch. 12 - Prob. 6QCh. 12 - How will the air temperature in a room affect the...Ch. 12 - Prob. 8QCh. 12 - Prob. 9Q
Ch. 12 - 10.A noisy truck approaches you from behind a...Ch. 12 - Prob. 11QCh. 12 - Prob. 12QCh. 12 - Traditional methods of protecting the hearing of...Ch. 12 - 14- Consider the two waves shown in Fig....Ch. 12 - Is there a Doppler shift if the source and...Ch. 12 - Prob. 16QCh. 12 - Prob. 17QCh. 12 - Prob. 1MCQCh. 12 - Prob. 2MCQCh. 12 - Prob. 3MCQCh. 12 - Prob. 4MCQCh. 12 - Prob. 5MCQCh. 12 - Prob. 6MCQCh. 12 - Prob. 7MCQCh. 12 - Prob. 8MCQCh. 12 - Prob. 9MCQCh. 12 - Prob. 10MCQCh. 12 - Prob. 11MCQCh. 12 - Prob. 12MCQCh. 12 - Prob. 13MCQCh. 12 - Prob. 1PCh. 12 - Prob. 2PCh. 12 - (a) Calculate the wavelengths in air at 20°C for...Ch. 12 - Prob. 4PCh. 12 - An ocean fishing boat is drifting just above a...Ch. 12 - Prob. 6PCh. 12 - Prob. 7PCh. 12 - What is the intensity of a sound at the pain level...Ch. 12 - What is the sound level of a sound whose intensity...Ch. 12 - Prob. 10PCh. 12 - Prob. 11PCh. 12 - Prob. 12PCh. 12 - One CD player is said to have a signal-to-noise...Ch. 12 - Prob. 14PCh. 12 - At a rock concert, a dB meter registered 130 dB...Ch. 12 - Prob. 16PCh. 12 - If the amplitude of a sound wave is made 3.5 times...Ch. 12 - Prob. 18PCh. 12 - Prob. 19PCh. 12 - Prob. 20PCh. 12 - Prob. 21PCh. 12 - Prob. 22PCh. 12 - Prob. 23PCh. 12 - Prob. 24PCh. 12 - Prob. 25PCh. 12 - Prob. 26PCh. 12 - The A string on a violin has a fundamental...Ch. 12 - Prob. 28PCh. 12 - (a) What resonant frequency would you expect from...Ch. 12 - If you were to build a pipe organ with open-tube...Ch. 12 - A tight guitar string has a frequency of 540 Hz as...Ch. 12 - Prob. 32PCh. 12 - 33. (II) An unfingered guitar string is 0.68 m...Ch. 12 - Prob. 34PCh. 12 - 35. (II) An organ is in tune at 22.0°C. By what...Ch. 12 - How far from the mouthpiece of the flute in...Ch. 12 - (a) At T= 22°C. how long must an open organ pipe...Ch. 12 - A particular organpipe can resonate at 264 Hz, 440...Ch. 12 - Prob. 39PCh. 12 - Prob. 40PCh. 12 - Prob. 41PCh. 12 - Prob. 42PCh. 12 - Prob. 43PCh. 12 - The human ear canal is approximately 2.5 cm long....Ch. 12 - Prob. 45PCh. 12 - Prob. 46PCh. 12 - A certain dog whistle operates at 23.5 kHz. while...Ch. 12 - Prob. 48PCh. 12 - A guitar string produces 3 beats/s when sounded...Ch. 12 - Prob. 50PCh. 12 - Prob. 51PCh. 12 - Prob. 52PCh. 12 - Prob. 53PCh. 12 - Prob. 54PCh. 12 - Prob. 55PCh. 12 - Prob. 56PCh. 12 - Prob. 57PCh. 12 - Prob. 58PCh. 12 - As a bat flies toward a wall at a speed of 6.0...Ch. 12 - Prob. 60PCh. 12 - Prob. 61PCh. 12 - Prob. 62PCh. 12 - Prob. 63PCh. 12 - Prob. 64PCh. 12 - Prob. 65PCh. 12 - Prob. 66PCh. 12 - Prob. 67PCh. 12 - Prob. 68PCh. 12 - Prob. 69PCh. 12 - Prob. 70PCh. 12 - Prob. 71GPCh. 12 - Prob. 72GPCh. 12 - Prob. 73GPCh. 12 - Prob. 74GPCh. 12 - Prob. 75GPCh. 12 - Prob. 76GPCh. 12 - Prob. 77GPCh. 12 - Prob. 78GPCh. 12 - Prob. 79GPCh. 12 - Prob. 80GPCh. 12 - Prob. 81GPCh. 12 - Prob. 82GPCh. 12 - Prob. 83GPCh. 12 - Prob. 84GPCh. 12 - Prob. 85GPCh. 12 - Prob. 86GPCh. 12 - Prob. 87GPCh. 12 - A bat flies toward a moth at speed 7.8 m/s while...Ch. 12 - Prob. 89GPCh. 12 - Two loudspeakers face each other at opposite ends...Ch. 12 - A sound-insulating door reduces the sound level by...Ch. 12 - Prob. 92GPCh. 12 - Prob. 93GPCh. 12 - Prob. 94GPCh. 12 - Prob. 95GPCh. 12 - Prob. 96GP
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