The orbital speed of a planet around the sun depends on the mass of the planet -is this statement true or false ?

The orbital speed of a satellite of the earth does not depend on the mass of the satellite -true or false

The time period of revolution of an artificial satellite in an orbit just outside the equatorial plane depends only on the mean density of the earth. Is this statement true or false ?

Total mechanical energy of a simple pendulum is directly proportional to the mass of the pendulum. Is the statement true or false?

The earth rotates around the sun in a circular orbit of radius R. Calculate the orbital speed of rotation of the earth around the sun. Also find the time period of rotation. Take the mass of the earth =m, mass of the sum =M.

At constant volume, the pressure of a definite mass of gas is directly proportional to its absolute temperature Is the statement true or false?

Escape speed on the surface of a planet varies with the mass m of a body as

The orbit of the earth around the sun is an ellipes with the sun at one of its foci. If the semi-major axis is 150 million kilometers and the eccentricity is (1)/(60), then the difference between the maximum and the minimum distance between the earth and teh sun is-

The mass of a planet is 4 times the mass of the earth and its radius is 2 times the radius of the earth. The acceleration due to gravity on that planet is