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2 years ago

Karen claps her hand and hears the echo from

Physics

1 answer:

Alinara [238K]2 years ago

3 0

Answer:

89 m

Explanation:

Applying

v = 2d/t................... Equation 1

Where v = velocity of sound in air, d = distance of the wall from Karen, t = time taken to hear the echo.

make d the subject of equation 1

d = vt/2..................... Equation 2

From the question,

Given: v = 343 m/s, t = 0.519 s

Substitute these values into equation 2

d = (343×0.519)/2

d = 89.01 m.

d ≈ 89 m

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3 years ago

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3 years ago

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3 years ago

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1 year ago

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Answer:

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the computation is shown below:

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Therefore the third option is correct

3 0

3 years ago