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Take the Speed of Sound to Be 340 M/s

Question 37

Multiple Choice

Take the speed of sound to be 340 m/s.A thunder clap is heard about 3 s after the lightning is seen.The source of both light and sound is:


A) moving overhead faster than the speed of sound
B) emitting a much higher frequency than is heard
C) emitting a much lower frequency than is heard
D) about 1000 m away
E) much more than 1000 m away

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