All Questions
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The radius of Earth is 4 times the radius of the moon. Estimate the acceleration due to gravity on the surface of the moon [closed]
I have derived an expression here which just needs the ratio of the densities of the Earth and its moon. My question is how do I go about finding this ratio or is there another way to approach this ...
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On the formation of Earth's moon
NASA states that :
The moon was formed ~4.5 billion years ago, about 30–50 million years
after the origin of the Solar System, out of debris thrown into orbit
by a massive collision between a ...
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The moon affects the motion of the oceans, but can the motion of the oceans affect the moon? [duplicate]
Obviously the earth's oceans have mass and therefore they have an attractive force upon the moon.
However, let's say that we were to cover most of earth with tidal power generators that extract some ...
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Speed of the Moon
Why the motion of the Moon looks very slow in the sky? Doesn't it need the high speed in order to escape the earth's gravity?
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If the Moon had gravity as strong as the Earth's, and a magnetic field, could it have supported life?
If the Moon had gravity as strong as Earth's, and a magnetic field, could it have supported life? Because if the Moon had as much gravity as Earth, it could have retained more water than is present ...
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