Gravitation — Mixed Difficulty

Practice 100 questions on Gravitation — Mixed Difficulty. Includes: Kepler's First Law states that planetary orbits are:; The approximate height of a geostationary satellite…; A uniform hollow spherical shell has mass $M$ and…. Free quiz on NoteTube.

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1.
Kepler's First Law states that planetary orbits are:
2.
The approximate height of a geostationary satellite above Earth's surface is:
3.
If Earth's mass were quadrupled (radius same), the orbital velocity near the surface would:
4.
A satellite moves from orbit $r$ to orbit $r/2$. The ratio of new total energy to old total energy is:
5.
A uniform hollow spherical shell has mass $M$ and inner radius $R$. The gravitational force on a point mass $m$ placed exactly at the centre of the shell is:

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