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Sounds travel through the air with an average speed of 340 m/s. A girl drops a rock from a bridge to the water 20m below. After the rock strikes the water, how much time will be required for the sound of the splash to reach the girl's ear?

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asuwafohjames

The time required for the sound of the splash to reach the girl's ear is 0.118 s.

What is sound?

This is an audible form of energy that is radiated from a source.

To calculate the time required for the sound of the splash to reach the girl's ear, we use the formula below.

Formula:

  • S = 2d/t................ Equation 1

Where:

  • S = Speed of sound in air
  • d = distance between the bridge and the water
  • t = time required for the sound of the splash to reach the girl's ear.

Make t the subject of the equation

  • t = 2d/S............. Equation 2

From the question,

Given:

  • d = 20 m
  • S = 340 m/s

Substitute these values into equation 2

  • t = 2(20)/340
  • t = 40/340
  • t = 0.118 s.

Hence, The time required for the sound of the splash to reach the girl's ear is 0.118 s.
Learn more about sound waves here: https://brainly.com/question/1199084