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IgorC [24]

Answer:

The first law states that every planet describes an elliptical path about the sun as a single focus.

The second law states that The line joining the planet to the sun sweeps out equal areas in equal time intervals.

The third law states that The squares of the period of revolution is proportional to the cubes of the mean distance between the planet and the sun

5 0

3 years ago

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If light travels from oil (slower medium) to water (faster medium) at an angle, what happens to the direction of the light ray i

iVinArrow [24]

If light travels from oil to water at an angle, what happens to the direction of the light ray in water with respect to the normal, is it moves away from the normal.

7 0

3 years ago

F = 2.0*10^20 N,

natka813 [3]

$F=\dfrac{Gm_1m_2}{r^2}$

With the given values of $F,G,m_1,r$ , we have

$2.0\times10^{20}\,\mathrm N=\dfrac{\left(6.67\times10^{-11}\,\frac{\mathrm{Nm}^2}{\mathrm{kg}^2}\right)\left(5.98\times10^{24}\,\mathrm{kg}\right)m_2}{\left(3.8\times10^8\,\mathrm m\right)^2}$