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A girl standing 600m away from a cliff bangs two pieces of wood together and hears an echo 3.5 seconds later. Determine the speed of sound in that place

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ItzMeÆXO

Speed = 342.86 m/s

EXPLANATION

s = v × t/2

600 m = v × 3.5 s/2

600 m × 2 = v × 3.5 s

1200 m = v × 3.5 s

v = 1200 m/3.5 s

v = 342.86 m/s

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The speed of sound in that place  342.86 m/s

What is speed of sound?

The speed of sound is defined as the distance through which a sound wave’s point, such as a compression or a rarefaction, travels per unit of time.

given

distance of cliff= 600 m

time = 3.5 seconds

speed of sound  = ?

distance = speed * time

distance travelled by the sound to come back to the place where the girl was standing will be = 600 * 2 m

speed = distance / time

speed =  600 * 2 m / 3.5 seconds

speed = 1200 / 3.5 = 342.86 m/s

The speed of sound in that place  342.86 m/s

learn more about speed of sound

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