Answers

The Brainliest Answer!
2016-03-01T15:51:23+05:30
velocity = frequency * lamda
v = 2000 Hz *0.45 m
v = 900 m/s
now,
distance = velocity * time 
s = 900 * 4
s = 3600 m

i hope it helps.........
2 4 2
2016-03-01T15:53:09+05:30
distance  =  3600m  .................................                                                                                           
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