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An astronaut lands on a planet that has twice the mass of earth and twice the diameter how does the astronauts weight differ from that on earth?
Wiki User
∙ 13y ago
you will use the formula g=GM/(r^2)
where g = gravity, G is the universal constant, M is mass, and r is the radius of the planet.
earths mass is about 5.937e24 kg
and radius is about 6.371e6 km keep in mind that the earth is not perfectly spherical so this is a mean.
the universal constant is 6.67e-11
now plug in the numbers
g=GM/r^2
g = 6.67e-11 (5.937e24*2) / ((6.371e6)*2)^2
g = 6.67e-11 (1.1874e25) / (1.2742e7)^2
g = 6.67e-11 (1.1874e25) / (1.6235e14)
g = 7.91996e14 / 1.62359e14
g = 4.87805 m/s^2 or half that of earths.
now you can do it on your own.
keep in mind that this is not perfect if you were to calculate with accuracy you would need to know the composition of the planet (the density and thickness of the crust and such)
Wiki User
∙ 13y ago
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What is diameter of your planet?
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Why do astronaut travel to different planets?
No astronaut has travelled to a different planet. If they were to do so it would be for exploration and exploitation. Astronauts are known to explore and travel for the benefit of the others.
What astronaut take with to explore new planet?
As there are no planets (new or old) close enough for astronauts to explore, this cannot be answered.
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No, because of the extreme heat, the thick atmosphere, and the long term trip for the astronaut.
Why is it that you can not find the exact diameter of a planet?
Because it is not easy to estimate the diameter of such a big area like the planets Earth, Mars, Neptune and the biggest planet Jupiter.If astronauts go to such planets to estimate their diameter it would be impossible for them to stay as life is not possiblle there.Even being on earth nobody can find the exact diameter.
If an astronaut landed on a planet made of antimatter there would be an explosion as both the astronaut and?
The amount of planet matter equal to that of the astronaut would annihilate.
Are astronauts and astronomers the same?
As astronaut travels into outer space and some have been killed doing so. Most astronomers stay on the planet Earth and look up into space. There have been astronauts who are astronomers, but, most astronomers are not astronauts. There have been tens of millions of astronomers looking up at outer space, but, only a few hundred astronauts. No, they are not the same.
How have astronauts explored or gotten information on Jupiter?
no astronaut has ever gotten a chance to step on any planet in our solar system {exept in movies }which is fake} astronauts have only stepped on the moon. but we humans recieved information of jupiter by a probe named galileo that arrived jupiter in 1955.
Has an astronaut ever landed on another planet before?
No, he traveled to the Moon, which is not classified as a planet. Though technically, the Earth and Moon could be classified as a double planet.
What astronaut has been to Mars the planet?
no
Do astronauts have weight in space?
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It depends upon the density of the planet. Another Answer: A person's weight is their Mass multiplied by the Force of Gravity of that particular planet. Your Mass should never change unless you gradually become skinnier or the opposite. So it prominently depends on the Force of Gravity not necessarily the diameter of the planet.
