Mon February 14, 2011 By: Om Prakash Arya

Give answers until as much time you want.

Expert Reply
Tue February 15, 2011

Dear student

You are sincerely requested to post each query individually; so that we may conviniently answer your queries at our level best.

1. Here, distance, d = 44.1 m ; time, t = 3.13 s; let 's' be the velocity of sound in air.

We know in case of reflection of sound, 2xd = s x t

or, 2 x 44.1 = s x 3.13

or, s = 28 m/s


Hope this helps.




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