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rosijanka [135]

1 year ago

6

new generation cordless phones use a 9.00x10^2 MHz frequency and can be operated up to 60.0 m from their base. how many waveleng

ths of the electromagnetic waves can fit between your ear and a base 60.0 m away?

1 answer:

Musya8 [376]1 year ago

3 0

Λ = 3*10^8 / 9*10^8 = 1/3 m
no. of wavelengths = 60/(1/3) = 180

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When the ball has left your hand and is flying on its own, its kinetic energy is

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2 years ago

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tatiyna

Answer:

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2 years ago

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