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jek_recluse [69]
3 years ago
15

A wave with a frequency of 5Hz travels a distance of 40mm in 2 seconds.What is the speed of the wave​

Physics
1 answer:
Mumz [18]3 years ago
7 0

Answer:

20mm per second

Explanation:

lol

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Answer:

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A person hits a 45-g golf ball. The ball comes down on a tree root and bounces
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Answer:

Maximum height, h = 10 m          

Explanation:

It is given that,

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We need to find the height the ball will rise  after the bounce. It is based on the conservation of energy such that,

\dfrac{1}{2}mv^2=mgh

h is maximum height raised by the ball

h=\dfrac{v^2}{2g}\\\\h=\dfrac{(14)^2}{2\times 9.8}\\\\h=10\ m

So, the ball will raised to a height of 10 meters.

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A 15 kilogram mass is traveling with a velocity of 2.7m/s. What is the object's kinetic energy?
Usimov [2.4K]

Answer:

KE=1/2*m*v^2

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Explanation:

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