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3 years ago

9

If a sound travels 343m/s through air and has a frequency of 800Hz, what would the wavelength be of the same sound traveling thr

ough water 500m/s with the same frequency?

1 answer:

VARVARA [1.3K]3 years ago

7 0

Answer:

0.625m

Explanation:

Now Velocity of a wave ,V = frequency × wavelength

Wavelength =velocity /frequency

=500/800 =0.625m

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Answer:

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$u=v-at$

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$u=v+gt\\\\u=17+9.8\times 2.3\\\\u=39.54\ m/s$

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3 years ago

how fast is a ball going when it hits the ground after being dropped from a height of 16m the acceleration of gravity is 9.8

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Answer:

17.7 m/s

Explanation:

Given:

y₀ = 0 m

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3 years ago