A man stands 80m in front of a cliff face.
He makes aloud bang and listens for the
echo. He ma...
Physics, 10.06.2021 08:30 staffordkimberly
A man stands 80m in front of a cliff face.
He makes aloud bang and listens for the
echo. He makes a loud bong once every second
He hears an echo exactly half way between
the bang that caused it and the next hang
A 40mis
B. 20m/s
C 160mis
D 320m/s
Answers: 2
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