Question

The echo of a gun shot is heard 8 sec after the gun
is fired. How far from him is the surface that reflects
the sound. (Velocity of sound in air - 350 mi)
4) 14 có m
b) 2800 m ) 700 m d) 350 m​

Answer 1

Answer:

so simple just

speed of sound × time = distance traveled

350×8 = 2800 m