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CBSE Class 12-science Answered

Gravitational pull on a satellite ..........
Asked by | 13 Oct, 2008, 07:23: PM
answered-by-expert Expert Answer

Astronauts don't feel gravity while in orbit, because it is being used to keep them in orbit, and at their certain speed and altitude is not strong enough to actually do more than that (or less).

This is not to say that gravity does not work on them. On the contrary, gravity oppose their straight line movement, it is changing their direction all the time, otherwise they would have been going at a straight line into space.

Answered by | 23 Oct, 2008, 12:58: AM

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CBSE 12-science - Physics
solve option e
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CBSE 12-science - Physics
The number of moles in an elemental sample is just the ratio of the mass m to atomic mass 4. n= A The number of protons N, in an elemental sample is Z (atomic number) times the number of moles of Avogadro's number NA N=ZnN P A Copper has an atomic mass of 63.5 g/mole and 29 protons per atom. If such an atom were neutral, then it would have as many protons as electrons. If you remove electrons from a neutral state, then you get a net positive charge. Given a 54 gram ball of copper with a net charge of 2.2 µC, what fraction of the copper's electrons have been removed?
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CBSE 12-science - Physics
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CBSE 12-science - Physics
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CBSE 12-science - Physics
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CBSE 12-science - Physics
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CBSE 12-science - Physics
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CBSE 12-science - Physics
13./A point charge of 12 µC is located at the centre of a cube of side 1 m. Calculate the electric flux through each face of the cube. (H.S.S.C.E.1999~S) [Ans. 2.26\times10^{5}N~m^{2}C^{-1}]
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CBSE 12-science - Physics
A coil of N turns is placed in a magnetic field B such that B is perpendicular to the plane of the coil. B changes with time as B=B0 cos 2元 where T is time period. The magnitude of emf-induced in the coil will be maximum at
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Asked by mishrigupta19319 | 05 Apr, 2024, 12:01: PM
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CBSE 12-science - Physics
a charge of 2microcoulomb experience a force of 6N when placed at a point in an electric field .find electric field at that point
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