Modified Mastering Physics with Pearson eText -- Access Card -- for College Physics: Explore and Apply (18-Weeks)

2nd Edition

ISBN: 9780136781158

Author: Eugenia Etkina, Gorazd Planinsic

Publisher: Pearson Education (US)

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Textbook Question

Chapter 11, Problem 21P

Show using a sketch and mathematics that the intensity of a three-dimensional wave is inversely proportional to the distance squared from the source. Give three examples that will explain what it means to be inversely proportional to the distance squared in this case. Assume there is no conversion of mechanical energy into thermal energy.

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Chapter 11, Problem 20P

Chapter 11, Problem 22P

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The force of the quadriceps (Fq) and force of the patellar tendon (Fp) is identical (i.e., 1000 N each). In the figure below angle in blue is Θ and the in green is half Θ (i.e., Θ/2). A) Calculate the patellar reaction force (i.e., R resultant vector is the sum of the horizontal component of the quadriceps and patellar tendon force) at the following joint angles: you need to provide a diagram showing the vector and its components for each part. a1) Θ = 160 degrees, a2) Θ = 90 degrees. NOTE: USE ONLY TRIGNOMETRIC FUNCTIONS (SIN/TAN/COS, NO LAW OF COSINES, NO COMPLICATED ALGEBRAIC EQUATIONS OR ANYTHING ELSE, ETC. Question A has 2 parts!

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Chapter 11 Solutions

Modified Mastering Physics with Pearson eText -- Access Card -- for College Physics: Explore and Apply (18-Weeks)

Ch. 11 - How do you produce a longitudinal wave on a...Ch. 11 - Compare and contrast the speed of a vibrating...Ch. 11 - Prob. 3RQ Ch. 11 - Prob. 4RQ Ch. 11 - Why is it impossible to create a traveling wave on...Ch. 11 - Your friend says that it is impossible for two...Ch. 11 - Is the following sentence true? When two...Ch. 11 - One end of a horizontal string of length L passes...Ch. 11 - When we studied traveling waves, we decided that...Ch. 11 - An ambulance siren blares continuously as the...

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