Jupiter has approximately that surface gravity.
Uranus.
The force of gravity on the surface of planet Neptune, and all of the other gas giants, is surprisingly weak, because most of it is not made of solid material. Neptune's force of gravity is about 1.14 times that of Earth. If you weighed 100 pounds and if you could stand on the surface of Neptune (which you couldn't), you would weigh 114 pounds.
No. Let's take Earth as a good example to start with. Let's say you look at the force of gravity of Pluto if it were twice as far from the Sun as Earth is. The force of gravity would be 2x2 = 4 times weaker. Move Pluto away from Sun twice that distance, and the force of gravity would be another 4 times weaker. Move Pluto away from the Sun another 2 times its previous distance, and the force of gravity between it and the Sun would be yet another 4 times weaker. And so on, until you reach a point in space where Pluto is really, actually positioned.
On Mars, there is low gravity, so there you could jump twice as high as you can on Earth. The acceleration due to gravity on mars is 3.71 m/s2, which is 0.379 times that of Earth. (The gravity on Earth is 2.64 times greater than the gravity on Mars.)
The more gravity a planet has, the more you will weigh on that planet. The amount of gravity that you feel depends on two things: the mass of the planet and the distance you are away from the center. Uranus has about 14 times the mass of earth, but also about 4 times the radius. Because you are some much farther away from the center of the planet, the force of gravity you feel is less. The effect of mass of a planet on the gravity of that planet is equal to the effect of the radius squared. In the case of Uranus, the radius squared is about 16 times that of Earth's radius squared, and the mass is about 14 times that of Earth. An approximation of your weight on Uranus based on these numbers would be: (Weight on Earth)*(14/16) (You can calculate the gravitational pull between two objects using the formula Fg = G(m1m2)/d2 where Fg is the force of gravity, m1 and m2 are the masses of the objects, d is the distance between objects, G is 6.67x10-11, and the units are newtons, kilograms, and meters.)
jupiter
Uranus.
The force of gravity on Jupiter is 24.8 ms-2, a little over 2.5 times that on earth.
The planet Venus. See more details here: http://www.answers.com/topic/Venus
You already stated in the question that it has 3.4 times the gravity of Earth.
At the surface, it is 2.64 times its value at the Earth's surface.
Yes, because if you are 90 pounds on earth you would be 15 pounds on the moon. This is because weight is the force of gravity acting on an object, and the force of gravity depends on the mass of the object. The force of gravity on the earth is six times greater than that of the moon, or, the force of gravity on the moon is 1/6 that of the earth. On earth, a person's weight would vary slightly between sea level and the top of a mountain. This is because the force of gravity is stronger the closer an object is to the center of the earth (or moon, or planet).
yes as the wight is directly proportional to gravity. In fact, weight itself is a force, as force is F=ma, such as weight on earth (or F) is a persons mass times the acceleration due to gravity on Earth (9.8 m/s2), and the force due to gravity changes depending where you are sense force due to gravity is F=G(m1m2/r2). So changing the mass of the planet changes the "weight" (aka force)
No. The gravitational pull at the surface of a planet depends on that planet's mass and radius. Jupiter has the strongest gravity of any planet in the solar system: 2.53 times the surface gravity on Earth. Mercury has the weakest surface gravity at just 37% the gravity on Earth.
The force of gravity on the surface of planet Neptune, and all of the other gas giants, is surprisingly weak, because most of it is not made of solid material. Neptune's force of gravity is about 1.14 times that of Earth. If you weighed 100 pounds and if you could stand on the surface of Neptune (which you couldn't), you would weigh 114 pounds.
No, the gravity of this planet will not be greater than that of earth. If the new planet has a mass equal to that of earth, its total gravity will be the same. There is a little ambiguity regarding 4 times earth density and half the earth's diameter if the idea is to keep the mass of this proposed planet the same as the earth. But setting that aside and assuming that the mass of the new planet is the same as earth's, the gravimetric field will be the same. Gravity is proportional to mass, and identical mass yields identical gravity. Now to the good part! The surface gravity of the new planet will be considerably higher than the surface gravity of earth. Both planets have the same mass and the same gravity, but a person standing on the surface of the new planet will be experiencing a whole lot more force pulling on him. All the mass of the new planet is beneath this person, but he's a lot closer to the center of gravityand will weigh a whole lot more.
No. Let's take Earth as a good example to start with. Let's say you look at the force of gravity of Pluto if it were twice as far from the Sun as Earth is. The force of gravity would be 2x2 = 4 times weaker. Move Pluto away from Sun twice that distance, and the force of gravity would be another 4 times weaker. Move Pluto away from the Sun another 2 times its previous distance, and the force of gravity between it and the Sun would be yet another 4 times weaker. And so on, until you reach a point in space where Pluto is really, actually positioned.