A fire works takes place at 0.75Km produces a sound wave that travels with
340m//s the time difference will be:
A. 4sec
B. 3sec
C. 2.2sec
D. none
Answers
Answered by
1
Explanation:
Time taken = Distance / Speed of sound in air
= 750 / 340
=2.2 sec
note 0.75km = 750m
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