PHYSICS: PRINCIPLES W/ APPLICATIONS
7th Edition
ISBN: 2818440071355
Author: GIANCOLI
Publisher: PEARSON
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Chapter 11, Problem 3P
An elastic cord is 61 cm long when a weight of 75 N hangs from it but is 85 cm long when a weight of 210 N hangs from it. What is the "spring” constant kof this elastic cord?
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PHYSICS: PRINCIPLES W/ APPLICATIONS
Ch. 11 - Prob. 1OQCh. 11 - Prob. 2OQCh. 11 - 1. Is the acceleration of a simple harmonic...Ch. 11 - Prob. 2QCh. 11 - How could you double the maximum speed of a simple...Ch. 11 - 4.If a pendulum clock isaccurate at sea level,...Ch. 11 - Prob. 5QCh. 11 - For a simple harmonic oscillator, when (if ever)...Ch. 11 - Two equal masses are attached to separate...Ch. 11 - S. What is the approximate period of your walking...
Ch. 11 - What happens to the period of a playground swing...Ch. 11 - Why can you make water slosh back and forth in a...Ch. 11 - Is the frequency of a simple periodic wave equal...Ch. 11 - Prob. 12QCh. 11 - What kind of waves do you think will travel along...Ch. 11 - Since the density of air decreases with an...Ch. 11 - Prob. 15QCh. 11 - How did geophysicists determine that part of the...Ch. 11 - Prob. 17QCh. 11 - Prob. 18QCh. 11 - Prob. 19QCh. 11 - Prob. 20QCh. 11 - Prob. 21QCh. 11 - Prob. 22QCh. 11 - Why do the strings used for the lowest-frequency...Ch. 11 - Prob. 24QCh. 11 - Prob. 25QCh. 11 - Prob. 26QCh. 11 - Prob. 27QCh. 11 - Prob. 1MCQCh. 11 - 2. An object oscillates back and forth on the end...Ch. 11 - Prob. 3MCQCh. 11 - Prob. 4MCQCh. 11 - Prob. 5MCQCh. 11 - Prob. 6MCQCh. 11 - At a playground, two young children are on...Ch. 11 - Prob. 8MCQCh. 11 - Prob. 9MCQCh. 11 - Prob. 10MCQCh. 11 - Prob. 11MCQCh. 11 - Prob. 12MCQCh. 11 - Prob. 13MCQCh. 11 - A student attaches one end of a Slinky to the top...Ch. 11 - Prob. 15MCQCh. 11 - If a particle undergoes SHM with amplitude 0.21 m,...Ch. 11 - 2. (I) The springs of a 1700-kg car compress 5.0...Ch. 11 - An elastic cord is 61 cm long when a weight of 75...Ch. 11 - 4 (II) Estimate the stiffness of the spring in a...Ch. 11 - A fisherman's scale stretches 3.6 cm when a 2.4-kg...Ch. 11 - Prob. 6PCh. 11 - A mass mat the end of a spring oscillates with a...Ch. 11 - Prob. 8PCh. 11 - Figure 11-51 |O shows two examples of SHM, labeled...Ch. 11 - Prob. 10PCh. 11 - Prob. 11PCh. 11 - Prob. 12PCh. 11 - A 1.65-kg mass stretches a vertical spring 0.215...Ch. 11 - A 1 15-kg mass oscillates according to the...Ch. 11 - A 0.25-kg mass at the end of a spring oscillates...Ch. 11 - It takes a force of 91.0 N to compress the spring...Ch. 11 - Prob. 17PCh. 11 - Prob. 18PCh. 11 - A mass resting on a horizontal, frictionless...Ch. 11 - Prob. 20PCh. 11 - Prob. 21PCh. 11 - Prob. 22PCh. 11 - Prob. 23PCh. 11 - Prob. 24PCh. 11 - 25 (III) A 1.60-kg object oscillates at the end of...Ch. 11 - 26. (Ill) Consider two objects, A and B, both...Ch. 11 - A pendulum has a period of 1.85 s on Earth. Whatis...Ch. 11 - How long must a simple pendulum be if it is to...Ch. 11 - A pendulum makes 28 oscillations in exactly 50 s....Ch. 11 - Prob. 30PCh. 11 - Your grandfather clock's pendulum has a length of...Ch. 11 - Prob. 32PCh. 11 - Prob. 33PCh. 11 - 34 (III) A clock pendulum oscillates at a...Ch. 11 - A fisherman notices that wave crests pass the bow...Ch. 11 - A sound wave in air has a frequency of 282 Hz and...Ch. 11 - Prob. 37PCh. 11 - AM radio signals have frequencies between 550 kHz...Ch. 11 - Prob. 39PCh. 11 - A cord of mass 0.65 kg is stretched between two...Ch. 11 - A 0.40-kg cord is stretched between two supports,...Ch. 11 - Prob. 42PCh. 11 - Prob. 43PCh. 11 - Prob. 44PCh. 11 - 45 (II) The intensity of an earthquake wave...Ch. 11 - Prob. 46PCh. 11 - Prob. 47PCh. 11 - Prob. 48PCh. 11 - Prob. 49PCh. 11 - Prob. 50PCh. 11 - Prob. 51PCh. 11 - Prob. 52PCh. 11 - Prob. 53PCh. 11 - A guitar string is 92 cm long and has a mass of...Ch. 11 - One end of a horizontal string is attached to a...Ch. 11 - Prob. 56PCh. 11 - Prob. 57PCh. 11 - Prob. 58PCh. 11 - Prob. 59PCh. 11 - Prob. 60PCh. 11 - 61. What frequency of sound would have a...Ch. 11 - Prob. 62GPCh. 11 - An energy-absorbing car bumper has a spring...Ch. 11 - Prob. 64GPCh. 11 - A block of mass mis suspended from a ceiling by a...Ch. 11 - 66. A block with mass m =6.0 kg rests on a...Ch. 11 - Prob. 67GPCh. 11 - Prob. 68GPCh. 11 - Prob. 69GPCh. 11 - Prob. 70GPCh. 11 - A 320-kg wooden raft floats on a lake. When a...Ch. 11 - Prob. 72GPCh. 11 - Prob. 73GPCh. 11 - Prob. 74GPCh. 11 - Carbon dioxide is a linear molecule The...Ch. 11 - Prob. 76GPCh. 11 - Prob. 77GPCh. 11 - Prob. 78GPCh. 11 - Prob. 79GPCh. 11 - Prob. 80GPCh. 11 - Prob. 81GPCh. 11 - Prob. 82GPCh. 11 - The ripples in certain groove 10.2 cm from the...Ch. 11 - Prob. 84GPCh. 11 - Prob. 85GPCh. 11 - Prob. 86GPCh. 11 - Prob. 87GP
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- A spring 1.50 m long with force constant 475 N/m is hung from the ceiling of an elevator, and a block of mass 10.0 kg is attached to the bottom of the spring. (a) By how much is the spring stretched when the block is slowly lowered to its equilibrium point? (b) If the elevator subsequently accelerates upward at 2.00 m/s2, what is the position of the block, taking the equilibrium position found in part (a) as y = 0 and upwards as the positive y-direction. (c) If the elevator cable snaps during the acceleration, describe the subsequent motion of the block relative to the freely falling elevator. What is the amplitude of its motion?arrow_forwardSome people modify cars to be much closer to the ground than when manufactured. Should they install stiffer springs? Explain your answer.arrow_forwardDescribe a system in which elastic potential energy is stored.arrow_forward
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