Saturn has a mass that is 95 times that of Earth and a radius that is...
Jupiter has a mass that is 320 times that of Earth and a radius that is 11.2 times that of Earth. What is the escape velocity from Jupiter in kilometers per second?
Suppose that Planet X has 5 times the radius of the Earth and and 16 times Earth's mass. What is the ratio of the escape velocity on Planet X divided by the escape velocity on Earth?
The sun's mass is roughly 333,000 times that of the Earth. A white dwarf with the mass of our sun would be roughly the size of the Earth. What launch speed would be required to put an object in orbit around a white dwarf in kilometers per second?
Planet X has 20 times the mass of the earth and 3 times the earth's radius. It orbits star Y at a distance of 8 AU, where 1 AU is the earth-sun distance. Star Y has twice the mass of our sun. (a) What is the orbital period of Planet X in years? (b) An astronaut has an earth weight of 120 lbs. What is her weight on the surface of planet X?
A hypothetical planet has 3 times the mass of Earth and twice the radius of the Earth. What is the surface gravity on this planet? r = Rplanet g = GMplanet / r2
A newly discovered planet has twice the mass and three times the radius of the earth. What is the free-fall acceleration at its surface, in terms of the free-fall acceleration g at the surface of the earth? a. 1/9 g b. 2/3 g c. 3/4 g d. 4/3 g E. None of these
A hypothetical planet has a mass 3 times that of the Earth and a radius twice that of the Earth. Calculate the value for acceleration due to gravity near the surface of this hypothetical planet.
A hypothetical planet has a radius 1.2 times that of Earth, but has the same mass. 1.)What is the acceleration due to gravity near its surface? Express your answer to two significant figures and include the appropriate units.
012 10.0 points Planet X has a mass 4.86 times that of the Earth and a radius 2.83 times the radius of the Earth What is the ratio of the acceleration due to gravity on the surface of Planet X to the acceleration due to gravity on the surface of the Earth?
radius of earth is 4 times larger than moon, mass of earth is 80 * Mass of moon. Given acceleration due to gravity at Earth's surface is 10m/s^2, how much iwll a 250 kg object weigh on the surface of the moon?