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The mass of the moon is 7.36×1022kg and its distance to the Earth is 3.84×108m.
What is the gravitational force of the moon on the earth?
The moon's force is what percent of the sun's force?
Using Newton's gravitational force equation $F=(Gm_1m_2)/(r^2)$ and assuming that the mass of is $m_1=5.972*10^24kg$ and $m_2$ is the given mass of the moon with $G$ being $6.674*10^-11Nm^2/(kg)^2$ gives $1.989*10^20...
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Why are there no stars in the photos of Earth taken from space and from the Moon?
To get a decent exposure of a bright object against an almost totally black background, you have to either take a vary fast shot (low exposure) or lower the quantity...
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Are there any more moon trips planned for space travel?
Recently, the Cassini-Huygens project came to an end when the Cassini spacecraft crashed into Saturn atmosphere. Life in our solar system might be found. This spacecraft's goal was the...
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Why didn't the Apollo astronauts return with pictures of stars and galaxies taken from the Moon's surface? Are stars visible from the surface of the moon?
The utmost advantage ( if any ) is when Moon is in-between a star and the Earth. The apogee distance of Moon from Earth is less than 4.1E+05 km. Stars'...
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What is space made of? If there is an estimated one atom per cubic meter of space, what else is filling up space?
This can be a difficult concept for some, but most of space contains no matter whatsoever–it's just emptiness. Dark Matter, a little understood thing that seems to have gravity but...
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Light from the sun travels through space to Earth's atmosphere. What will light waves do when they move from empty space into matter made up of different gases?
The speed of light in vacuum is the highest possible speed (according to Einstein). It's $~~300000km//sec$ When light goes into a denser medium (and any medium is denser than vacuum)...
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Can radio waves be used as a form of x-ray?
It depends on what you mean by "as a form of". X-rays came to prominence in popular use from their ability to penetrate matter to different degrees, allowing "pictures" of...
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Can sound waves travel on moon? Is it possible that we could hear a sound on moon?
Since there is no air on moon, it is not possible for sound waves to travel. You have to use radio or something like that for sound waves to travel.
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Is it possible for a moon in orbit around a planet to have a secondary moon orbiting the moon itself?
It is possible for a moon to capture an asteroid which then goes into orbit around it to become a moon. The problem is that many moons, such as our...
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Why would a telescope on the moon be beneficial to astrophysics study?
No cloudy nights..There are lot of electro magnetic disturbances on earth due to different electrical equipment working on Earth..Also radio, TV transmissions, communications Lunar surface is free from all these.....
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