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svp [43]
4 years ago
12

How many vibrations per second are represented in a radio wave of 101.7 MHz. (1 MHz = 106Hz)?

Physics
1 answer:
Ne4ueva [31]4 years ago
3 0

Answer:

n=101.7\times 10^6

Explanation:

It is given that,

Frequency of the radio wave, f=101.7\ MHz=101.7\times 10^6\ Hz

We know that the number of vibrations per second is called frequency of an object. We need to find the number of vibrations per second. Clearly, the number of vibrations per second represented in a radio wave is 101.7\times 10^6. Hence, this is the required solution.

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m = mass of the person = 82 kg

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F = normal force by the surface on the person

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The normal force by the surface in upward direction balances the weight of the person in down direction , hence

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kinetic frictional force on the person acting is given as

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using eq-1

f = μ mg

inserting the values

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