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Universality is a fundamental principle in physics - the same laws of physics apply everywhere at all times. So if the mass of something on earth is zero (such as the rest mass of a photon), then the mass will be zero everywhere in the universe, disregarding the effects of relativistic mass.
Do not confuse mass with weight - mass is invariable - it is the same everywhere. Weight, however, diminishes in proportion to the square of the distance you travel away from the center of planet earth.
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What is the Potential energy of a mass at the centre of the earth?
Zero
If a hole is drilled to the center of the earth and a stone whose mass is 1 kilogram at the surface of the earth is dropped into it then what is the weight at the center of the earth?
The weight of an object is its mass times the acceleration of gravity. The acceleration of gravity at the center of the Earth is zero. A 1 kg mass at the center of the Earth still has a mass of 1 kg, but the force of attraction between the 1kg mass and all the other mass around it will add up to zero.
How much is the gravity at the center of the earth and in which direction is it pulling?
The gravity at the center of the Earth is zero because the mass around you causes gravity to be in equilibrium. It is pulling in all directions equally, resulting in a net zero gravitational force at the center.
How do weights on Earth compare weights on the Moon?
because we are on earth the mass of an object greater and if we will in the outside of earth we will lessen
What is the value of 'g' at center of earth?
The value of acceleration due to gravity 'g' at the center of the Earth is theoretically zero because the mass of the Earth surrounds an object equally in all directions, resulting in a net gravitational force of zero at the center.
What is the mass of all photons from the sun striking the Earth in a year?
Mass of photons? Zero, photons have no mass. If you mean energy, that is a different question, ask it.
What is the mass of the stone when it is at the earths center if a hole is drilled to the center if the earth and stone whose mass is one kilo gram at the earth's surface is dropped into it?
One kilogram. Mass is invariant.The weight at that point is zero. But the mass doesn't change.
Why at the center of the earth the gravitational force is zero?
if four horses with equal power are pulling one from opposite sides, it will not move. means net force would be zero. same is at center of earth. the mass of earth around center attracts equally to all sides( because geometrical center and center of mass are same). so net force is zero. On the other hand if you think of gravity as a force puling you into the centre of the earth then when you are at the center of the earth gravity must be zeero
What is the value of Earth's gravitational field at the center of the Earth?
In the cavity at the center of the Earth, your weight would be zero, because you would be pulled equally by gravity in all directions. - The gravitational field of Earth at its center is zero.
Why is value of 'g' zero at the centre of the earth?
At the center, for every particle of mass in the earth to attract you gravitationally, there's an equal particle with the same mass, located at the same distance from you in exactly the opposite direction, balancing out the force toward the first one. All of this is a theoretically ideal case. It assumes that the earth is a perfect sphere, with the same distribution of mass in every direction from the center. The real earth is lumpy, oddly shaped, and bumpy, so the acceleration of gravity wouldn't be exactly zero at the center.
Is it possible for an object's mass to be zero?
No, it is not possible for an object's mass to be zero.
Why is the weight of an object zero at the center of the earth?
The gravitational attraction is not by anything special in the center of the Earth; instead, it is the sum of the attraction by every individual atom.For an object in the center of the Earth, the pull in one direction will be exactly compensated by the pull in another direction.So it turns out that if you're anywhere inside a solid sphere, it acts as if none of the mass OUTSIDE of yourposition is there. You're only affected by the mass of the smaller sphere INSIDE your position, as if you wereon its surface, and the 'shell' outside of your position had gone away.The weight is zero at the center of the earth. since F= G M.m / 2 d at the center of the earth the distance is zero from the center thus no force is imaginable. a more profound explanation is that at the center you are being puled by every particle from all sides with equal forces, the net force is logically zero.since weight=mgand gravity at center of earth is zero(g=0)so weight is zero
