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3seconds after a gun is

3seconds after a gun is fired, the person who fired the gun hears an echo. How far away was the surface that reflected the sound
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2. asked by eugenia
3. 3,463 views
A student of mass 80kg stands on a spring scale in an elevator.During the first 3seconds,starting from rest,the scale reads
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2. asked by ceasar
3. 868 views
How fast is an object traveling after 3seconds if its terminal velocity is about 35 m/s.?
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2. asked by anon
3. 389 views
A man of weigt 600N runs up the stairs of heigt 4m in 3seconds. what is exerted by the man?
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2. asked by vincent
3. 2,710 views
a sound wave is prouduced. 3seconds later its echo was heard.what is the distance between the reflecting surface and source. Try
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2. asked by scl
3. 539 views
A wave travels a distance of 20cm in 3seconds.if the distance two successive crest is 4cm. Calculate the frequency
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2. asked by Timilehin
3. 141 views
A car starts from rest and is accelerated uniformly at a rate of 4M/second square for 5 second. It maintain a constant speed for
1. 1 answer
2. asked by severinapaschal44
3. 134 views
A bridge is ten meters above a canal and A motor boat going 3minutes per second passes under the center of the bridge at the
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2. asked by Anonymous
3. 491 views
a person shouted at the surface of a well abd heard his echo clearly after 0.3seconds calculate the distance between the person
1. 1 answer
2. 109 views
How long does the stone take to fall from the height of the cliff to the ground below?wit 3seconds after the stone has reached
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2. asked by Prescilla
3. 537 views