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प्रश्न
The work done by Sun on Earth in one year will be
पर्याय
Zero
Non zero
Positive
Negative
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उत्तर
Zero
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संबंधित प्रश्न
The work done by the Sun’s gravitational force on the Earth is __________.
Define gravitational potential energy.
Is potential energy the property of a single object? Justify.
Define gravitational potential.
The work done by Sun on Earth at any finite interval of time is
If the Earth’s pull on the Moon suddenly disappears, what will happen to the Moon?
Two bodies of masses m and 4m are placed at a distance of r. Calculate the gravitational potential at a point on the line joining them where the gravitational field is zero.
If the ratio of the orbital distance of two planets `"d"_1/"d"_2` = 2, what is the ratio of gravitational field experienced by these two planets?
Calculate the gravitational field at point O due to three masses m1, m2 and m3 whose positions are given by the following figure. If the masses m1 and m2 are equal what is the change in a gravitational field at the point O?

Earth revolves around the Sun at 30 km s−1. Calculate the kinetic energy of the Earth. In the previous example, you calculated the potential energy of the Earth. What is the total energy of the Earth in that case? Is the total energy positive? Give reasons.
