Lost your password? Please enter your email address. You will receive a link and will create a new password via email.
Please briefly explain why you feel this question should be reported.
Please briefly explain why you feel this answer should be reported.
Please briefly explain why you feel this user should be reported.
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
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
D. about 1000 m away