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Why an astronaut in a space shuttle feels weightless?
"Weight" happens when the attraction of gravity on a mass is resisted, we only FEEL the weight when we are resisting gravity. Weightlessness therefore happens when gravity is not resisted - when you are in "free-fall".In a space when you are in orbit round the Earth, you are effectively in "free-fall" and therefore as you are not resisting gravity you are weightless (but not massless).
How does an astronaut's mass while orbiting in the space shuttle compare with his mass while standing on the earth's surface?
An astronaut's mass remains unchanged whether they are in orbit aboard the space shuttle or standing on Earth's surface; mass is a measure of the amount of matter in an object and does not vary with location. However, the astronaut experiences weightlessness in orbit due to the microgravity environment, which is a result of the shuttle and astronaut being in free fall together around the Earth. This sensation of weightlessness can lead to the common misconception that mass decreases in space, but it does not; only the effects of gravity on the astronaut's body change.
Triple earth's mass effect its orbit?
The earth's mass has no effect on its orbit. An astronaut on a "space walk" hovering over the space shuttle's cargo bay is in the same earth-orbit as the shuttle itself is, although his mass is much less than the shuttle's mass. At the same time, the shuttle and the astronaut are both in the same solar orbit as the earth is, although each of them has quite a bit less mass than the earth has.
How does mass determine the orbit of a celestial body?
Mass doesn't influence the orbit of a celestial body. Consider this: An astronaut aboard the Space Shuttle puts on a space-suit and steps outside for a 'space walk'. While he or she is out there ... inspecting the tiles or flexing the arm or whatever else they do out there ... the astronaut picks up both feet and floats free of the Shuttle for a few seconds. The astronaut and the Shuttle are both in earth orbit, and they stay together. They don't fly apart, even though the Shuttle's mass is thousands of times the astronaut's mass. As long as the orbiting body is small compared to the central body, the period of the orbit depends only on its size, not on the mass.
Does the speed of a satellite in orbit depend on its mass?
No. The speed of any orbiting body depends only on the energy of its orbit, meaning mainly its distancefrom the central body.When a Space Shuttle astronaut performs a 'space walk', and momentarily unhooks his feet from thehull of the shuttle, he and the shuttle are both in earth orbit. The astronaut and the shuttle have thesame orbital speed, and they stay close together, even though the shuttle has somewhat more massthan the astronaut has.
Is the weight of the space shuttle the same on earth as it is in space?
Its mass is the same(ignoring spent fuel) but the weight is a result of the gravitational pull, which is different in space. Actually the space shuttle never gets far enough from the earth for it's weight to change. The reason it seems weightless is because it is in free-fall.
Why does an astronaut still have the same mass on the moon?
Your mass is the amount of matter that contains, it is your weight that will differ due to gravity. The astronaut still has the same amount of matter whether he be on earth, in space, or on the moon, though due to the different strenghts of gravity he will weight the most on earth, 1/6th of this on the moon, and be weightless in outer space.
Does an astronaut in space have inertia?
Yep, if an astronaut has mass, they will have inertia.
How much will astronaut weigh in outer space?
A pound is a unit of mass. Mass is constant throughout the cosmos, so if the astronaut has a MASS of 180 pounds on Earth, it will be the same even in space. But, the astronaut doesn't have a weight of 180 pounds. His MASS is 180 pounds. Weight = mass x gravity. So, in space, his weight is 0 Newtons.
How heavy is the heaviest space shuttle?
When in space, it is weightless. But it still takes energy to move the mass around. Shuttle Gross liftoff weight: 240,000 lb (109,000 kg) Empty weight: 172,000 lb (78,000 kg) Maximum payload: 55,250 lb (25,060 kg) Maximum landing weight: 230,000 lb (104,000 kg)
Does the mass of an astronaut change when she or he is visiting the International Space Station?
The mass of an astronaut does not change when she is visiting the International Space Station. Mass is a property that does not change, but the weight of a person does change in space.
Why does an astronauts weight change when in space?
Because of gravity. Depending on the gravity, the austronaut weights more or less. If the gravitational pull is bigger then the astronaut will weight more but if the gravitational pull is weaker then the astronaut will weight less, even though the mass of the austronaut doesn't change.
