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Shkiper50 [21]
3 years ago
10

What is the frequency of a wave whose wavelength is 0.7m and whose velocity is 120m/s?

Physics
1 answer:
ANEK [815]3 years ago
5 0

Answer:

f=171.43Hz

Explanation:

Wave frequency is the number of waves that pass a fixed point in a given amount of time.

The frequency formula is: f=v÷λ, where <em>v</em> is the velocity and <em>λ</em> is the wavelength.

Then replacing with the data of the problem,

f=\frac{120\frac{m}{s} }{0.7m}

f=171.43\frac{1}{s}

f=171.43 Hz (because \frac{1}{s} = Hz, 1 hertz equals 1 wave passing a fixed point in 1 second).

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Assume that a lightning bolt can be modeled as a long, straight line of current. If 16 C of charge passes by a point in 1.50 x 1
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Answer:

B = 7.9012*10^{-5}T

Explanation:

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7 0
3 years ago
Suppose you observe two stars and you know they have the same luminosity. If one star is twice as far away as the other, the mor
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Answer:

The farther star will appear 4 times fainter than the star that is near to the observer.

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Having aced your Physics 2111 class, you get a sweet summer-job working in the International Space Station. Your room-mate, Cosm
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Answer:

a

The speed is   s =  5.857 m/s

b

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substituting values

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