The ability of a celestial body to retain an atmosphere depends on its gravitational force being strong enough to overcome the kinetic energy of gas molecules. The Moon's gravitational force is too weak to hold onto a significant atmosphere.
There is no atmosphere on the moon. It is because :-
Asked in Assistant Engineer (AE) Exam 2013 · Topic: Mechanics (Gravitation and Central Force Motion (Kepler's Laws))
More Physics questions
- Escape velocity from the surface of Mars \times 10^6$ m) is approximately :
- Minimum velocity required by a body to escape earth's gravitation (escape velocity) is
- Consider the following statements: 1. Gravitational force is a long-range force. 2. Gravitational force is always attractive. 3. Gravitational force is not conservative. 4. Gravitational force is a central force. Which of the statements given above are correct?
- Kepler's laws are related to
- If we can place a body at the centre of earth, its weight will be
- A man inside an artificial satellite feels weightlessness because the force of attraction due to earth is
- The number of generalized co-ordinates required to describe the position of a simple pendulum is
- If Pn(x) is Legendre's polynomial, then the value of P2n(0) is given by -