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puteri [66]
3 years ago
13

A wave travels at a frequency of 387 Hz. What isthe period of the wave?​

Physics
1 answer:
Ulleksa [173]3 years ago
5 0

Answer:

¹/₃₈₇ second

Explanation:

<em>The period of a wave is the reciprocal of its frequency.</em>

So, simply, the frequency is ¹/₃₈₇ second(s), as that is the reciprocal of the frequency, 387 Hz.

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Answer:

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Given power output to walk on a flat ground to be 300W, h = 0.05x, v = 1.4m/s

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Total energy used = potential energy used in climbing and the energy used in a walking the horizontal distance.

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Where t is the time taken to cover the distance

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So

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Substituting respective values

E = 70×9.8×0.05×1.4t +300t = 348t

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