A periodic wave transfers

1 answer:

Serhud [2]3 years ago

7 0

A periodic wave transfers energy.

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Dahasolnce [82]

Answer:

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Katyanochek1 [597]

Answer:

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2 years ago

Anni [7]

Answer:

PE=0.29J

Explanation:

According to the description, there is a angle and in point swung upward of 70°

So,

$Y=13*10^{-2}*cos(70) \\Y=0.0444m$

Appling the equation of Potential Energy we have,

$PE=mgh\\PE=(0.35)(9.8)(0.13-0.0444)\\PE=0.29J$

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3 years ago

mariarad [96]

Can't

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3 years ago

Margaret [11]

(2)<span>less than 750 N.( if the downward acceleration of elevator were g,then answer would be 0 N.)</span>

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3 years ago