4 years ago

Rephrase the law of universal gravitation

1 answer:

5 0

The law of universal gravitation says that one object attracts every other object using a proportional force to the mass of the object.

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Which line represents a stationary object?

sineoko [7]

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I think its B but I may be wrong

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3 years ago

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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

The operator turns on the ride and brings it up to its proper turning rate of one complete rotation every 7.7 s.

We need to find the least coefficient of static friction between the cat and the merry-go-round that will allow the cat to stay in place, without sliding. For this the centripetal force is balanced by the frictional force.

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

v is the speed of cat, $v=\dfrac{2\pi r}{t}$

$\mu=\dfrac{4\pi^2r}{gt^2}\\\\\mu=\dfrac{4\pi^2\times 4.4}{9.8\times (7.7)^2}\\\\\mu=0.29$

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

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3 years ago

Which statement best describes the atoms of the gas neon?

Leya [2.2K]

Answer:

They:

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-Move constantly

-Move freely (all directions)

-Move at high speed

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3 years ago

If the voltage in a circuit is 24 V and the current is 2 A, what is the total power in the circuit?

Drupady [299]

Maybe you can divide the volts its twelve if you do that but itll show you how much to double it by

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What is the best conclusion for the events taking place on a molecular level in the images seen here?

slega [8]

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Explanation:

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