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Can an object in infinite free fall using earth's gravity in a vacuum reach the speed of light?
Wiki User
∙ 13y ago
No. There's an interesting mathematical relationship here: Assuming no friction and no interference from other bodies, the speed acquired by a body falling "from infinity" towards another object is exactly equal to the "escape velocity" from that object. For Earth, this is about seven miles per second, nowhere near the speed of light.
Wiki User
∙ 13y ago
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Why is the dielectric strength of vacuum infinite?
The dielectric strength of vacuum is infinite because there is no molecule in the vacuum.
Why doesn't earths atmosphere get sucked into the vacuum of space?
gravity acts on the gas, just like all other things on the planet.
How do you accelerate an object in a vacuum?
Apply a force (rockets, recoil, gravity, etc.)
What happens to gravity in vacuum?
Nothing. Gravity exists in vacuum as well.
How can pendulum oscillate in vacuum even there is no gravity?
There IS gravity in a vacuum - there's no AIR.
What does a liter of water weigh in space?
Weight depends on gravity. People seem to think there is no gravity in space yet the earths gravitational pull is quite strong for quite long. Think of the moon, its pulled by earths gravity long after our atmosphere gives way to the vacuum of space. A liter of water would be the same weight in space and would only fade over long distances. As a side note space begins at like 60-70 miles above the earths surface. If you took a space ship up 120 miles (well into space) and parked it, you would promptly fall back to earth like any object dropped from a height. Lack of atmosphere implies nothing about gravity.
Why can a object falling in a vacuum never reach terminal velocity?
Terminal velocity is the velocity where the force of gravity balances the drag of the air stream flow past the object. At terminal velocity, the object's acceleration due to gravity becomes zero, and the object begins to fall at a constant velocity. In a vacuum, however, there is no air - and thus no drag- so the object continues to accelerate.
Where can I buy a backpack vacuum from?
You can buy a backpack vacuum from Amazon they have several listed.
If an object falls for 12 seconds from what height did it fall ignoring air resistance?
On object falling under the force of gravity (9.8 m/s2) would, in a vacuum, fall a distance of 706 metres in 12 seconds. In a non-vacuum, i.e. air, the object would fall less distance in the same time due to drag.xt = 0.5 (9.8) t2
Would steam defy gravity in a vacuum?
No.
Do things float in vacuum?
Yes if there is no gravity
Can you stand on the dwarf planet Eris?
You would need to be in a suit that was able to withstand a Vacuum and some seriously low tempereatures, but you could stand on its surface. The surface gravity is low, since the overall mass of the planet is quite small, less than 10% of the Earths gravity.
