Advertisements
Advertisements
प्रश्न
The work done by Sun on Earth in one year will be
विकल्प
Zero
Non zero
Positive
Negative
Advertisements
उत्तर
Zero
APPEARS IN
संबंधित प्रश्न
The gravitational potential energy of the Moon with respect to Earth is ____________.
The work done by the Sun’s gravitational force on the Earth is __________.
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 ___________.
Will the angular momentum of a planet be conserved? Justify your answer.
Define gravitational potential.
Prove that at points near the surface of the Earth, the gravitational potential energy of the object is U = mgh.
If a comet suddenly hits the Moon and imparts energy which is more than the total energy of the Moon, what will happen?
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.
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.
