College Physics: A Strategic Approach (3rd Edition)

3rd Edition

ISBN: 9780321879721

Author: Randall D. Knight (Professor Emeritus), Brian Jones, Stuart Field

Publisher: PEARSON

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Textbook Question

Chapter P.4, Problem 20P

Additional Integrated Problems

The jumping gait of the kangaroo is efficient because energy is stored in the stretch of stout tendons in the legs; the kangaroo literally bounces with each stride. We can model the bouncing of a kangaroo as the bouncing of a mass on a spring. A 70 kg kangaroo hits the ground, the tendons stretch to a maximum length, and the rebound causes the kangaroo to leave the ground approximately 0.10 s alter its feet first touch.

a. Modeling this as the motion of a mass on a spring, what is the period of the motion?

b. Given the kangaroo mass and the period you’ve calculated, what is the spring constant?

c. If the kangaroo speeds up, it must bounce higher and farther with each stride, and so must store more energy in each bounce. How does this affect the time and the amplitude of each bounce?

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Chapter P.4, Problem 19P

Chapter P.4, Problem 21P

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Chapter P Solutions

College Physics: A Strategic Approach (3rd Edition)

Ch. P.1 - Prob. 1P Ch. P.1 - The following questions are related to the passage...Ch. P.1 - The following questions are related to the passage...Ch. P.1 - Prob. 4P Ch. P.1 - Animal Athletes Different animals have very...Ch. P.1 - Animal Athletes Different animals have very...Ch. P.1 - Animal Athletes Different animals have very...Ch. P.1 - Animal Athletes Different animals have very...Ch. P.1 - Animal Athletes Different animals have very...Ch. P.1 - The drag force on an object moving in a liquid is...

Ch. P.1 - The drag force on an object moving in a liquid is...Ch. P.1 - Sticky Liquids BIO The drag force on an object...Ch. P.1 - The drag force on an object moving in a liquid is...Ch. P.1 - Pulling Out of a Dive Falcons are excellent fliers...Ch. P.1 - Pulling Out of a Dive Falcons are excellent fliers...Ch. P.1 - Pulling Out of a Dive Falcons are excellent fliers...Ch. P.1 - Bending Beams If you bend a rod down, it...Ch. P.1 - Bending Beams If you bend a rod down, it...Ch. P.1 - Bending Beams If you bend a rod down, it...Ch. P.1 - Additional Integrated Problems 20. You go to the...Ch. P.1 - If you stand on a scale at the equator, the scale...Ch. P.1 - Additional Integrated Problems Dolphins and other...Ch. P.2 - Prob. 1P Ch. P.2 - Prob. 2P Ch. P.2 - Prob. 3P Ch. P.2 - Prob. 4P Ch. P.2 - The following passages and associated questions...Ch. P.2 - The following passages and associated questions...Ch. P.2 - The following passages and associated questions...Ch. P.2 - The following passages and associated questions...Ch. P.2 - The following passages and associated questions...Ch. P.2 - Testing Tennis Balls Tennis balls are tested by...Ch. P.2 - Testing Tennis Balls Tennis balls are tested by...Ch. P.2 - Testing Tennis Balls Tennis balls are tested by...Ch. P.2 - Squid Propulsion Squid usually move by using their...Ch. P.2 - Squid Propulsion Squid usually move by using their...Ch. P.2 - Squid Propulsion Squid usually move by using their...Ch. P.2 - Squid Propulsion Squid usually move by using their...Ch. P.2 - Teeing Off A golf club has a lightweight flexible...Ch. P.2 - Teeing Off A golf club has a lightweight flexible...Ch. P.2 - Teeing Off A golf club has a lightweight flexible...Ch. P.2 - Teeing Off A golf club has a lightweight flexible...Ch. P.2 - Additional Integrated Problems Football players...Ch. P.2 - Additional Integrated Problems The unit of...Ch. P.2 - Additional Integrated Problems A 100 kg football...Ch. P.2 - Additional Integrated Problems A swift blow with...Ch. P.2 - Additional Integrated Problems A childs sled has...Ch. P.3 - Size and Life Physicists look for simple models...Ch. P.3 - Size and Life Physicists look for simple models...Ch. P.3 - Size and Life Physicists look for simple models...Ch. P.3 - Size and Life Physicists look for simple models...Ch. P.3 - Prob. 6P Ch. P.3 - Prob. 7P Ch. P.3 - Prob. 8P Ch. P.3 - Prob. 9P Ch. P.3 - Prob. 10P Ch. P.3 - Prob. 11P Ch. P.3 - Prob. 12P Ch. P.3 - Prob. 13P Ch. P.3 - Prob. 14P Ch. P.3 - Passenger Balloons Long-distance balloon flights...Ch. P.3 - Passenger Balloons Long-distance balloon flights...Ch. P.3 - Passenger Balloons Long-distance balloon flights...Ch. P.3 - Prob. 18P Ch. P.3 - Prob. 19P Ch. P.3 - Prob. 20P Ch. P.3 - Prob. 21P Ch. P.4 - Waves in the Earth and the Ocean In December 2004,...Ch. P.4 - Waves in the Earth and the Ocean In December 2004,...Ch. P.4 - Waves in the Earth and the Ocean In December 2004,...Ch. P.4 - Waves in the Earth and the Ocean In December 2004,...Ch. P.4 - Waves in the Earth and the Ocean In December 2004,...Ch. P.4 - Prob. 6P Ch. P.4 - Prob. 7P Ch. P.4 - Prob. 8P Ch. P.4 - Prob. 9P Ch. P.4 - Prob. 10P Ch. P.4 - Prob. 11P Ch. P.4 - Prob. 12P Ch. P.4 - Prob. 13P Ch. P.4 - Prob. 14P Ch. P.4 - Prob. 15P Ch. P.4 - Prob. 16P Ch. P.4 - In the Swing A rope swing is hung from a tree...Ch. P.4 - In the Swing A rope swing is hung from a tree...Ch. P.4 - In the Swing A rope swing is hung from a tree...Ch. P.4 - Additional Integrated Problems The jumping gait of...Ch. P.4 - Prob. 21P Ch. P.5 - Scanning Confocal Microscopy Although modern...Ch. P.5 - If, because of a poor-quality objective, the light...Ch. P.5 - The resolution of a scanning confocal microscope...Ch. P.5 - Prob. 4P Ch. P.5 - In a horses eye, the image of a close object will...Ch. P.5 - Prob. 6P Ch. P.5 - A horse is looking straight ahead at a person who...Ch. P.5 - Prob. 8P Ch. P.5 - Light of wavelength 600 nm in air passes into the...Ch. P.5 - Prob. 10P Ch. P.5 - Prob. 11P Ch. P.5 - 12. In human vision, the curvature of the cornea...Ch. P.5 - Prob. 13P Ch. P.5 - 14. Figure V.2c shows the lens of the eye bringing...Ch. P.5 - The pupil of your eye is smaller in bright light...Ch. P.5 - People with good vision can make out an...Ch. P.5 - Prob. 17P Ch. P.5 - Prob. 18P Ch. P.6 - The Greenhouse Effect and Global Warming...Ch. P.6 - The Greenhouse Effect and Global Warming...Ch. P.6 - The Greenhouse Effect and Global Warming...Ch. P.6 - The Greenhouse Effect and Global Warming...Ch. P.6 - The Greenhouse Effect and Global Warming...Ch. P.6 - Prob. 6P Ch. P.6 - Prob. 7P Ch. P.6 - The following passages and associated questions...Ch. P.6 - Prob. 9P Ch. P.6 - Prob. 10P Ch. P.6 - Prob. 11P Ch. P.6 - Electric Cars In recent years, practical hybrid...Ch. P.6 - Electric Cars In recent years, practical hybrid...Ch. P.6 - Electric Cars In recent years, practical hybrid...Ch. P.6 - Electric Cars In recent years, practical hybrid...Ch. P.6 - Wireless Power Transmission Your laptop has...Ch. P.6 - Wireless Power Transmission Your laptop has...Ch. P.6 - Wireless Power Transmission Your laptop has...Ch. P.6 - Wireless Power Transmission Your laptop has...Ch. P.6 - Additional Integrated Problems 20. A 20 resistor...Ch. P.6 - Prob. 21P Ch. P.7 - Prob. 1P Ch. P.7 - Prob. 2P Ch. P.7 - Prob. 3P Ch. P.7 - Prob. 4P Ch. P.7 - Prob. 5P Ch. P.7 - Prob. 6P Ch. P.7 - Prob. 7P Ch. P.7 - Prob. 8P Ch. P.7 - Prob. 9P Ch. P.7 - Prob. 10P Ch. P.7 - Prob. 11P Ch. P.7 - Prob. 12P Ch. P.7 - Prob. 13P Ch. P.7 - Prob. 14P Ch. P.7 - Prob. 15P Ch. P.7 - Prob. 16P Ch. P.7 - Prob. 17P Ch. P.7 - Prob. 18P Ch. P.7 - Many speculative plans for spaceships capable of...Ch. P.7 - A muon is a lepton that is a higher-mass (rest...Ch. P.7 - A muon is a lepton that is a higher-mass (rest...

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