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2 years ago

A stone is thrown into a pond. Five waves were made from the same source in 10 seconds.

Physics

1 answer:

lina2011 [118]2 years ago

3 0

Answer:

The Frequency of the wave is 0.2Hertz

The period is 2seconds

Explanation:

We are asked to find the frequency and period

Frequency is the number of oscillations completed in one seconds

If five waves were made from the same source in 10 seconds, hence;

Frequency = number of oscillation/Time

Frequency = 5/10

Frequency = 0.5Hertz

Next is to get the period

Period = 1/Frequency

Period = 1/0.5

Period = 2seconds

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Answer:

Part a)

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Part b)

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Explanation:

Part a)

When large crate is suspended at rest or moving with uniform speed then it is given as

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here since speed is constant or it is at rest

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$F_t - mg = -ma$

$F_t = mg - ma$

so tension force is less than the weight of crate if it is accelerating downwards

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