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evablogger [386]

3 years ago

15

A roller coaster is at the top of a hill and rolls to the top of a lower hill if mechanical energy is constant then on the top o

f which hill is the kinetic energy from the roller coasters motion greater

1 answer:

mafiozo [28]3 years ago

4 0

The kinetic energy is greater on the second hill

hope i helped have a great day

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A cat dozes on a stationary merry-go-round, at a radius of 4.4 m from the center of the ride. The operator turns on the ride and

monitta

Answer:

The coefficient of static friction is 0.29

Explanation:

Given that,

Radius of the merry-go-round, r = 4.4 m

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$\mu mg=\dfrac{mv^2}{r}$

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So, the least coefficient of static friction between the cat and the merry-go-round is 0.29.

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A 2500-lb vehicle has a drag coefficient of 0.35 and a frontal area of 20 ft2. What is the minimum tractive effort required for

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Answer:

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Explanation:

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