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Rainbow [258]
3 years ago
10

If the second harmonic of a certain string is 42 Hz, what is the fundamental frequency of the string?

Physics
1 answer:
stich3 [128]3 years ago
5 0
I would think that you would have to do 42/2=21Hz, but I'm not sure...
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A person hits a tennis ball with a mass of 0.058 kg against a wall.
horrorfan [7]

Explanation:

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Final speed of the ball, v = -11 m/s (negative as it rebounds)

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(a) Let F is the average force exerted on the wall. It is given by :

F=\dfrac{m(v-u)}{t}

F=\dfrac{0.058\times (11-(-11))}{2.1}

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3 years ago
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Answer:

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Explanation:

A race car has a maximum speed of 0.104km/s

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Hence the speed in miles per hour is 232.641374 mph

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