In a report in last week's issue of The Astrophysics Journal, Dr . Ramesh Narayan of the Harvard-Smithsonian astrophysics center proposed an explanation in which most of the gravitational energy at a black hole's event horizon is converted to the thermal energy of hot electrified gases.
42.
The energy of the nucleus is negative with regard to the energy of the particles pulled apart to infinite distance ( just like the gravitational energy of planets of the solar system ), because energy must be utilized to split a nucleus into its individual protons and neutrons.
43.
It may also be convenient to distinguish gravitational energy, thermal energy, several types of nuclear energy ( which utilize potentials from the nuclear force and the weak force ), electric energy ( from the electric field ), and magnetic energy ( from the magnetic field ), among others.
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Where E is the gravitational energy ( in Joules ), m is the mass of the object accelerating ( in kilograms ), g is the acceleration of the object ( in meters per second per second ) and h is the distance from the larger body ( in meters ).
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You can think of all sorts of crazy contraptions that you'd need if gravitational energy ( or kinetic energy ) were to supersede chemical and electrical energy as our main way to transfer energy from one place to another . talk ) 17 : 49, 24 July 2014 ( UTC)
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Heat sources include gravitational energy released by the compression of the core, gravitational energy released by the rejection of light elements ( probably sulfur, oxygen, or silicon ) at the inner core boundary as it grows, latent heat of crystallization at the inner core boundary, and radioactivity of potassium, uranium and thorium.
47.
Heat sources include gravitational energy released by the compression of the core, gravitational energy released by the rejection of light elements ( probably sulfur, oxygen, or silicon ) at the inner core boundary as it grows, latent heat of crystallization at the inner core boundary, and radioactivity of potassium, uranium and thorium.
48.
While in certain situations it is possible to rewrite the equations so that part of the " gravitational energy " now stands alongside the other source terms in the form of the stress energy momentum pseudotensor, this separation is not true for all observers, and there is no general definition for obtaining it.
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These include gravitational energy ( which is stored in the way masses are arranged in a gravitational field ), several types of nuclear energy ( which utilize potentials from the nuclear force and the weak force ), electric energy ( from the electric field ), and magnetic energy ( from the magnetic field ).
50.
For example, the energy in the gravitional field of the universe that coincides with its expansion is equal and opposite to the mass energy of the universe and it is not assumed ( and the equations do not indicate ) that the expansion created the positive mass energy and negative gravitational energy, nor vice versa.
