Statement-1: Moon cannot be used as a satellite for communication.
Statement-2: Moon doesn't move in the equatorial plane of the earth.

Why can't Moon surface be used for communication?

Why can moon be not used as a communication satellite?

Statement-1: On moon you cannot hear your friend standing at some distance from you Statement-2: There is vacuum on moon.

Statement-1: On moon you cannot hear your friend standing at some distance from you Statement-2: There is vacuum on moon.

Statement I : Earth continuously attracts the moon towards its centre and yet the moon does not move towards the centre of earth. Statement II : The gravitational force of atteraction between the moon and earth provides the necessary centripetal force.

Statement-1: Moon has no atmosphere. Statement-2: Due to less gravity moon is unable to retain its atmosphere.

Statement-1: Moon has no atmosphere. Statement-2: Due to less gravity moon is unable to retain its atmosphere.

Statement-1: Moon has no atmosphere. Statement-2: Due to less gravity moon is unable to retain its atmosphere.

If 'R' is the distance of the Moon from the Earth and 'T ' is the period of revolution of the Moon , then obtain the formula to calculate the mass of the Earth.