A bat flying in a cave emits a sound and receives its echo 0.1 s later. Show that its distance from the cave wall is 19 m.
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Solution 4P We can neglect the own speed of the bat, since it’s very small in comparison with the speed of sound. The sound wave emitted by the bat travels to the cave wall, where it’s reflected from the wall, and travels back to be received by the bat as an echo. Thus the sound wave travels twice the distance between the bat and cave wall. Therefore, the distance between the bat and the cave wall can be calculated as, L = wt 2 Where, w is the speed of the sound, t is the time of the sound wave travelling. We know that w = 19 m and t = 0.1 s in the above equation, = 19 m2× 0.1 s L = 0.95 m
Textbook: Conceptual Physics
Author: Paul G. Hewitt
Since the solution to 4P from 20 chapter was answered, more than 498 students have viewed the full step-by-step answer. Conceptual Physics was written by and is associated to the ISBN: 9780321909107. The full step-by-step solution to problem: 4P from chapter: 20 was answered by , our top Physics solution expert on 04/03/17, 08:01AM. This full solution covers the following key subjects: its, Cave, bat, echo, emits. This expansive textbook survival guide covers 45 chapters, and 4650 solutions. This textbook survival guide was created for the textbook: Conceptual Physics, edition: 12. The answer to “A bat flying in a cave emits a sound and receives its echo 0.1 s later. Show that its distance from the cave wall is 19 m.” is broken down into a number of easy to follow steps, and 27 words.