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If objects are weightless in space why can't an astronaut push the space shuttle by the power of his own muscles?
weightless is just a figure of speech. things in space are just lighter than they are on earth. the space shuttle weighs 220,000pds so in space it might weigh 100,000pds. ...
How can an object in space warp space and time if it is essentially weightless and would not therefore create any gravitational influence on it?
Weightless is not the same as massless -- it is an object's mass that warps space (and time) around it, creating a gravitational field. ...
Asked in Chemistry
Is it impossible for someone to be weightless and or massless?
Weight is dependent on gravity so in "empty" space, You are weightless! And it's also possible to feel weightless by undergoing freefall. But if you were massless, you wouldn't exist. Not even electrons are massless. ...
Asked in Astronomy
Why are astronauts weightless in outer space?
Most astronauts never escape Earths gravity. They only feel weightless because they are falling around the earth in an orbit at the same speeed as the shuttle or spacestation they are in. Only the 24 astronauts who have made it to the moon were technically weightless as they traveled through "outer space". ...
Asked in Physics
A friend says that astronauts in orbit are weightless because they're beyond the pull of earth's gravity correct your friend's ignorance?
Astronauts are weightless in space because there is no gravity in space. The lack of gravity is what allows them to float. ...
What happens to your bones when you are weightless?
What happens to your bones when you are weightless, is that your bones will get weaker and weaker. That is why everyday, astronauts, have to spend two hours on a treadmill everyday of there space expedition. ...