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Is the gravitational force between moon & earth are equal ?

Newton's law of universal gravitation for two ...
Newton’s law of universal gravitation for two bodies. This law governs gravitational forces in the Earth. (Photo credit: Wikipedia)

Is the gravitational force between moon & earth are equal ?

If the question is- “Is the force exerted by earth on moon is equal to the force exerted by moon on earth?” then the answer is “Yes

I hope that more questions will follow.

Please post your questions as comments to this post.

  • Comparison of charge and mass

Why does the sun appear to rise and set though it is actually not moving?

Why does the sun appear to rise and set though it is actually not moving?

Shivangi asks

Answer:

English: Animated image of Earth rotating.

First of all I would like to remind you that it is incorrect to say that “sun is not moving”. Sun is also moving. But the question here is, “Sun appears to rise and set not because of its motion”.

Sunset and sunrise are caused by the rotation of earth. When earth rotates, the position of sun appears to change and it seems as if the sun is revolving around the earth; just like we feel that the ground is revolving around us when we are looking out from a rotating merry-go-round.

Why do we represent particle by a group of matter waves and not by single de Broglie wave

Why do we represent particle by a group of matter waves and not by single de Broglie wave?

Two representations of a hydrogenic de-Broglie...
Two representations of a hydrogenic de-Broglie wave; the ring represents the electron's phase as a color, the wavy line shows the phase using a polar plot of a sinus curve. (Photo credit: Wikipedia)
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