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| 147. |
| If the frequency of the wave to the
right is 20.0 s -1, what is its speed? |
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A. |
0.17 m/s |
|
There
are 1.5 waves thus the wavelength is 5.0 m / 1.5.
wavelength = 3.3 m
speed = lambda f = 3.3 m x 20.0 s -1
= 66 m/s |
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B. |
0.25 m/s |
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C. |
66 m/s |
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D. |
1.0 x 10 2 m/s |
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