A man fires a rifle in front of a cliff and hears the echo after 3s. Calculate the distance of man from the cliff, if velocity of sound in air is 340 m/s.

A group of hikers hears an echo 3.50 s after shouting. How far away is the mountain that reflected the sound wave? (Assume the speed of sound is 343 m/s.) m

A man fired a bullet against a wall and hears an echo after 2s. he walks 80 m towards the wall and fired bullet, such that he hears echo after 1s. If the distance from wall to the second fired place is 80 × y, then find y

A man stands in between two walls and bursts a balloon. He hears two successive echoes after 0.5s and 2.5s Calculate the distance between the walls when the speed of sound is 332m/s.mSKIP CONFIRM

You can hear an echo when the sound wave reflects from the wall and reaches you.If you hear an echo, 4 seconds after you produce the sound, how far is the wall?Use a speed of sound of 340 m/s for this question.  340 meters away from you You Answered  1360 meters away from you Correct Answer  680 meters away from you   10 meters away from you

A construction worker’s helmet slips and falls when he is 78.4 m above the ground. He hears the sound of the helmet hitting the ground 4.23 s after it slipped. Find the speed of sound in air. 340.86 m/s 380.68 m/s320.26 m/s368. 40 m/s