Red Planet is

The mass of a planet is twice the mass of earth and diameter of the planet is thrie the diameter of the earth, then the acceleration due to gravity on the planet's surface is

Planet A has double the radius than that of Planet B. If the mass of Planet A is 4 times heavier than the mass of Planet B, which of the following statements regarding weight of an object is correct?

The ratio of the weight of a body on the Earth’s surface to that on the surface of a planet is 9 : 4. The mass of the planet is 1/9 of that of the Earth. If ‘R’ is the radius of the Earth, then the radius of the planet is where n is ___________ . (Take the planets to have the same mass density)

A satellite is in an elliptical orbit around a planet P. It is observed that the velocity of the satellite when it is farthest from the planet is 6 times less than that when it is closest to the planet . The ratio of distances between the statellite and the planet at closest and farthest points is :

If a and b are the nearest and farthest distances of a planet from the sun and the planet is revolving in an elliptical orbit, then square of the time period of revolution of that planets is directly proportional to

If mass of the planet is 10% less than that of the earth and radius of the planet is 20% greater than that of the earth then the weight of 40kg person on that planet is