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3 years ago

If the distance between two masses is tripled, the gravitational force between changes by a factor of

Physics

2 answers:

maw [93]3 years ago

6 0

A. 1/9

Explanation:

The gravitational force between two objects is given by

$F=G\frac{m_1 m_2}{r^2}$

where

G is the gravitational constant

m1 and m2 are the two masses

r is the distance between the two masses

From the formula, we see that the magnitude of the force is inversely proportional to the square of the distance: therefore, if the distance is tripled (increased by a factor 3), the magnitude of the force changes by a factor

$\frac{1}{r^2}=\frac{1}{3^2}=\frac{1}{9}$

icang [17]3 years ago

3 0

A. 1/9 is the answer.

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$v = 4564.42m/s$

From the speed it is possible to use find the formula, so

$T = \frac{2\pi r}{v}$

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$KE = \frac{1}{2} (100)(4564.42)^2$

$KE = 1.0416*10^9J$

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