If the mass of a body is $M$ on the Earth's surface,then the mass of the same body on the Moon's surface is:

The change in the value of acceleration of the earth towards the sun,when the moon moves from the position of a solar eclipse to the position on the other side of the earth in line with the sun,is: (mass of the moon $= 7.36 \times 10^{22} \ kg$,radius of the moon's orbit $= 3.8 \times 10^8 \ m$).

Which of the following statements about the gravitational constant $G$ is true?

The gravitational constant depends upon .........

The tidal waves in the sea are primarily due to

The mass of the moon is $1\%$ of the mass of the earth. The ratio of the gravitational pull of the earth on the moon and that of the moon on the earth will be