Advertisements
Advertisements
Question
Explain why:
The atmosphere does not escape.
Advertisements
Solution
Atmosphere does not escape because molecules of atmosphere are attracted by earth due to the gravitational force of the earth.
APPEARS IN
RELATED QUESTIONS
A person brings a mass of 1 kg from infinity to a point A. Initially the mass was at rest but it moves at a speed of 2 m s −1 as it reaches A. The work done by the person on the mass is −3 J. The potential at A is
The mass of moon is about 0.012 times that of earth and its diameter is about 0.25 times that of earth. The value of G on the moon will be:
A ball is thrown vertically upwards. It goes to a height 20 m and then returns to the ground. Taking acceleration due to gravity g to be 10 ms-2 , find :
the total time of journey of the ball .
How will the force of gravitation between two objects change if the distance between them is:
Halved
Is the law of gravitation applicable in case of the sun and the moon?
What does a force do in the following case?
You twist a piece of rubber.
Name and state the action and reaction in the following case:
Hammering a nail.
We can shield a charge from electric fields by putting it inside a hollow conductor. Can we shield a body from the gravitational influence of nearby matter by putting it inside a hollow sphere or by some other means?
Shown are several curves (Figure). Explain with reason, which ones amongst them can be possible trajectories traced by a projectile (neglect air friction).
For an object outside a uniform solid sphere, from where is the sphere's mass considered to act?
