Modified Mastering Physics without Pearson eText-- Instant Access -- for Physics for Scientists & Engineers with Modern Physics

5th Edition

ISBN: 9780134402659

Author: GIANCOLI, Douglas

Publisher: PEARSON

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Shock Waves

Shock waves are common in continuum mechanics, and their dominance is attributable to the fact that they are stronger (or even less) compressible. Substantial perturbations propagated as sudden dynamic changes of a compressible medium supersonically. Sho…

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Textbook Question

Chapter 15, Problem 20P

(II) Show that the intensity of a wave is equal to the energy density (energy per unit volume) in the wave times the wave speed.

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Chapter 15, Problem 19P

Chapter 15, Problem 21P

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Race car driver is cruising down the street at a constant speed of 28.9 m/s (~65 mph; he has a “lead” foot) when the traffic light in front of him turns red. a) If the driver’s reaction time is 160 ms, how far does he and his car travel down the road from the instant he sees the light change to the instant he begins to slow down? b) If the driver’s combined reaction and movement time is 750 ms, how far do he and his car travel down the road from the instant he sees the light change to the instant he slams on her brakes and car begins to slow down? Please answer parts a-B. Show all work. For each question draw a diagram to show the vector/s. Show all the step and provide units in the answers. Provide answer to 2 decimal places. DONT FORGET TO DRAW VECTORS! ONLY USE BASIC FORMULAS TAUGHT IN PHYSICS. distance = speed * time.

Race car driver is cruising down the street at a constant speed of 28.9 m/s (~65 mph; he has a “lead” foot) when the traffic light in front of him turns red. a) If the driver’s reaction time is 160 ms, how far does he and his car travel down the road from the instant he sees the light change to the instant he begins to slow down? b) If the driver’s combined reaction and movement time is 750 ms, how far do he and his car travel down the road from the instant he sees the light change to the instant he slams on her brakes and car begins to slow down? c) If the driver’s average rate of acceleration is -9.5 m/s2 as he slows down, how long does it take him to come to a stop (use information about his speed of 28.9 m/s but do NOT use his reaction and movement time in this computation)? Please answer parts a-c. Show all work. For each question draw a diagram to show the vector/s. Show all the step and provide units in the answers. Provide answer to 2 decimal places unless stated otherwise.…

How is it that part a is connected to part b? I can't seem to solve either part and don't see the connection between the two.

Chapter 15 Solutions

Modified Mastering Physics without Pearson eText-- Instant Access -- for Physics for Scientists & Engineers with Modern Physics

Ch. 15.1 - Prob. 1AE Ch. 15.1 - You notice a water Wave pass by the end of a pier...Ch. 15.2 - A wave starts at the left end of a long cord (see...Ch. 15.4 - A wave is given by D(x, t) = (5.0 mm) sin(2.0x ...Ch. 15 - Prob. 1Q Ch. 15 - Explain the difference between the speed of a...Ch. 15 - Prob. 3Q Ch. 15 - What kind of waves do you think will travel down a...Ch. 15 - Prob. 5Q Ch. 15 - Prob. 6Q

Ch. 15 - The speed of sound in most solids is somewhat...Ch. 15 - Give two reasons why circular water waves decrease...Ch. 15 - Prob. 9Q Ch. 15 - Will any function of (x t)see Eq. 1514represent a...Ch. 15 - When a sinusoidal wave crosses the boundary...Ch. 15 - If a sinusoidal wave on a two-section cord (Fig....Ch. 15 - Is energy always conserved when two waves...Ch. 15 - Prob. 14Q Ch. 15 - Prob. 15Q Ch. 15 - Prob. 16Q Ch. 15 - Prob. 17Q Ch. 15 - Prob. 18Q Ch. 15 - When a standing wave exists on a string, the...Ch. 15 - When a cord is vibrated as in Fig. 1525 by hand or...Ch. 15 - AM radio signals can usually be heard behind a...Ch. 15 - Prob. 22Q Ch. 15 - Prob. 1MCQ Ch. 15 - Prob. 2MCQ Ch. 15 - Prob. 3MCQ Ch. 15 - Prob. 4MCQ Ch. 15 - Prob. 5MCQ Ch. 15 - Prob. 6MCQ Ch. 15 - Prob. 7MCQ Ch. 15 - Prob. 8MCQ Ch. 15 - Prob. 9MCQ Ch. 15 - Prob. 10MCQ Ch. 15 - Prob. 11MCQ Ch. 15 - Prob. 1P Ch. 15 - Prob. 2P Ch. 15 - (I) Calculate the speed of longitudinal waves in...Ch. 15 - (1) AM radio signals have frequencies between 550...Ch. 15 - Prob. 5P Ch. 15 - Prob. 6P Ch. 15 - Prob. 7P Ch. 15 - Prob. 8P Ch. 15 - Prob. 9P Ch. 15 - Prob. 10P Ch. 15 - Prob. 11P Ch. 15 - Prob. 12P Ch. 15 - Prob. 13P Ch. 15 - Prob. 14P Ch. 15 - Prob. 15P Ch. 15 - Prob. 16P Ch. 15 - Prob. 17P Ch. 15 - Prob. 18P Ch. 15 - Prob. 19P Ch. 15 - (II) Show that the intensity of a wave is equal to...Ch. 15 - Prob. 21P Ch. 15 - Prob. 22P Ch. 15 - Prob. 23P Ch. 15 - Prob. 24P Ch. 15 - Prob. 25P Ch. 15 - Prob. 26P Ch. 15 - (II) A transverse wave pulse travels to the right...Ch. 15 - Prob. 28P Ch. 15 - Prob. 29P Ch. 15 - (II) Write the equation for the wave in Problem 28...Ch. 15 - (II) A sinusoidal wave traveling on a string in...Ch. 15 - Prob. 32P Ch. 15 - Prob. 33P Ch. 15 - (II) Determine if the function D = A sin k x cos t...Ch. 15 - (II) Show by direct substitution that the...Ch. 15 - Prob. 36P Ch. 15 - Prob. 37P Ch. 15 - Prob. 38P Ch. 15 - Prob. 39P Ch. 15 - Prob. 40P Ch. 15 - (II) A cord has two sections with linear densities...Ch. 15 - (III) A cord stretched to a tension FT consists of...Ch. 15 - (I) The two pulses shown in Fig. 1536 are moving...Ch. 15 - Prob. 44P Ch. 15 - Prob. 45P Ch. 15 - (I) If a violin string vibrates at 294 Hz as its...Ch. 15 - Prob. 47P Ch. 15 - Prob. 48P Ch. 15 - (II) The velocity of waves on a string is 96 m/s....Ch. 15 - Prob. 50P Ch. 15 - Prob. 51P Ch. 15 - Prob. 52P Ch. 15 - Prob. 53P Ch. 15 - (II) In Problem 52, Fig. 1537, the length of the...Ch. 15 - Prob. 55P Ch. 15 - Prob. 56P Ch. 15 - Prob. 57P Ch. 15 - Prob. 58P Ch. 15 - (II) Plot the two waves given in Problem 58 and...Ch. 15 - Prob. 60P Ch. 15 - Prob. 61P Ch. 15 - (II) Two oppositely directed traveling waves given...Ch. 15 - Prob. 63P Ch. 15 - Prob. 64P Ch. 15 - (I) An earthquake P wave traveling 8.0 km/s...Ch. 15 - Prob. 67P Ch. 15 - (I) Water waves approach an underwater shelf where...Ch. 15 - Prob. 69P Ch. 15 - Prob. 70P Ch. 15 - Prob. 71GP Ch. 15 - Prob. 72GP Ch. 15 - (II) Seismic reflection prospecting is commonly...Ch. 15 - Prob. 74GP Ch. 15 - A bug on the surface of a pond is observed to move...Ch. 15 - Prob. 76GP Ch. 15 - Prob. 77GP Ch. 15 - Prob. 78GP Ch. 15 - Prob. 79GP Ch. 15 - Prob. 80GP Ch. 15 - A transverse wave pulse travels to the right along...Ch. 15 - (a) Show that if the tension in a stretched string...Ch. 15 - Prob. 83GP Ch. 15 - Prob. 84GP Ch. 15 - Two strings on a musical instrument are tuned to...Ch. 15 - The ripples in a certain groove 10.8 cm from the...Ch. 15 - Prob. 87GP Ch. 15 - Prob. 88GP Ch. 15 - Prob. 90GP Ch. 15 - A highway overpass was observed to resonate as one...Ch. 15 - Prob. 92GP Ch. 15 - Estimate the average power of a water wave when it...Ch. 15 - Prob. 94GP Ch. 15 - Two wave pulses are traveling in opposite...Ch. 15 - Prob. 96GP

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