Advertisements
Advertisements
प्रश्न
The work done by the Sun’s gravitational force on the Earth is __________.
पर्याय
always zero
always positive
can be positive or negative
always negative
Advertisements
उत्तर
The work done by the Sun’s gravitational force on the Earth is can be positive or negative.
APPEARS IN
संबंधित प्रश्न
If the masses of the Earth and Sun suddenly double, the gravitational force between them will ___________.
If the distance between the Earth and Sun were to be doubled from its present value, the number of days in a year would be ___________.
If the mass and radius of the Earth are both doubled, then the acceleration due to gravity g'
An object of mass 10 kg is hanging on a spring scale which is attached to the roof of a lift. If the lift is in free fall, the reading in the spring scale is ___________.
Write unit of the gravitational field.
Define gravitational potential.
What is the difference between gravitational potential and gravitational potential energy?
Prove that at points near the surface of the Earth, the gravitational potential energy of the object is U = mgh.
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?
What is the gravitational potential energy of the Earth and Sun? The Earth to Sun distance is around 150 million km. The mass of the Earth is 5.9 × 1024 kg and the mass of the Sun is 1.9 × 1030 kg.
