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AysviL [449]
3 years ago
14

By how many times will the kinetic energy of a body increases if its speed is trippled? Show by calculation.​

Physics
1 answer:
Lemur [1.5K]3 years ago
4 0

Answer:

6 times

Explanation:

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Which one of the following statements does not accurately describe vibrations?
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Two boats are anchored in the harbor, separated my a horizontal distance of 14m. The boats boo up and down as waves enter the ha
Talja [164]

Given:

Horizontal distance between two boats = x = 14 m

One boat is at trough, the other is at crest.

As there is no crests between them meaning the boat are next to each other.

Wavelength is the distance between two consecutive crests/troughs = w

The distance between a crest and a trough next to it = w/2

Complete cycles = c = 5

Time taken for c cycles = t = 15 s

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To find:

wavelength = w = 2x = 28 m

Amplitude =  A = Displacement from mean to extreme position = y/2 = 1.2 m

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frequency = 1/T = 1/3 = 0.33 hertz

speed = wavelength/Period = w/T = 28/3 = 9.33 m/s

4 0
3 years ago
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