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Help quick!! Only answer! I don't need explanation. A body created an echo near a well of depth 18m What is the maximum height to be reduced so that he can hear the echo at 0°c What is the time for him
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4 votes
Help quick!!

Only answer!
I don't need explanation.
A body created an echo near a well of depth 18m
What is the maximum height to be reduced so that he can hear the echo at 0°c
What is the time for him to listen to the echo at 20°c​

User Ijse
by
5.6k points

1 Answer

6 votes

Answer:

17.2 m.

Step-by-step explanation:

User Alan Bowen
by
5.8k points
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