×
Log in to StudySoup
Get Full Access to Physics - Textbook Survival Guide
Join StudySoup for FREE
Get Full Access to Physics - Textbook Survival Guide

A rule of thumb for estimating the distance in kilometers

Conceptual Physics | 12th Edition | ISBN: 9780321909107 | Authors: Paul G. Hewitt ISBN: 9780321909107 29

Solution for problem 30E Chapter 20

Conceptual Physics | 12th Edition

  • Textbook Solutions
  • 2901 Step-by-step solutions solved by professors and subject experts
  • Get 24/7 help from StudySoup virtual teaching assistants
Conceptual Physics | 12th Edition | ISBN: 9780321909107 | Authors: Paul G. Hewitt

Conceptual Physics | 12th Edition

4 5 0 246 Reviews
26
0
Problem 30E

A rule of thumb for estimating the distance in kilometers between an observer and a lightning stroke is to divide the number of seconds in the interval between the flash and the sound by 3. Is this rule correct? Defend your answer.

Step-by-Step Solution:

Solution 30E Step 1 of 2: The speed of sound in air is about 333 m/s, whereas the speed of light is 3 million m/s ( 3 × 10 m/s). Which means , for most of the practical cases, the speed of light is instantaneous. Therefore, we see the flash at the same instant when it happens, whereas the sound travels at 333m/s , we hear the sound later. To travel 1 kilometer, sound takes 3 seconds, 1000 m 333 m/s 3 seconds Therefore, the approximate rule (3 seconds per kilometer) is correct.

Step 2 of 2

Chapter 20, Problem 30E is Solved
Textbook: Conceptual Physics
Edition: 12
Author: Paul G. Hewitt
ISBN: 9780321909107

Unlock Textbook Solution

Enter your email below to unlock your verified solution to:

A rule of thumb for estimating the distance in kilometers

×
Log in to StudySoup
Get Full Access to Physics - Textbook Survival Guide
Join StudySoup for FREE
Get Full Access to Physics - Textbook Survival Guide
×
Reset your password