In the formula E = mc2, what does E represent?
A) the mass-energy, or potential energy stored in an object's mass
B) the gravitational potential energy of an object held above the ground
C) the radiative energy carried by light
D) the kinetic energy of a moving object
E) the electric charge of the object
2007-02-14 02:59:02 · 10 answers · asked by Diggler AKA The Cab Driver 1 in Science & Mathematics ➔ Astronomy & Space
It would be A), the mass-energy/all potential engergy. Because, the mass is a form of energy, stored energy. It took energy to make it, and that energy is being saved, and if you make it go faster and faster, eventually at the speed of light it will be returned to that basic form of energy.
2007-02-14 03:03:55 · answer #1 · answered by Scott and Friends 2 · 1⤊ 0⤋
The Energy of Mass of an object = The Mass of the Object (Measured at rest) * The Speed of Light (in a Vacuum) Squared.
So, A is the answer you're looking for here.
The link below does a very good job of explaining the issue in pretty understandable terms for ya.
Good luck!
Orion
2007-02-14 03:48:26 · answer #2 · answered by Orion 5 · 0⤊ 0⤋
E is mass-energy.
In the SI ("metric") system,
E (in joules) = mass (in kilograms) x c (in meters per second) ^2
So 1 gram of matter can be converted into energy:
E = 0.001 x (3x10^8)^2 = 9 x10^13 joules
Now 1 joule = 1 watt x second
So 9x10^13 joules = 9x10^13 watt x second
= 25,000,000 kilowatt hours
That's more than energy than Hoover dam produces in 2 days!
2007-02-14 04:33:16 · answer #3 · answered by morningfoxnorth 6 · 0⤊ 0⤋
Sure, this relates the potential energy to a mass. The atom bomb is the practical "proof". I don't think anyone has yet been able to prove Einstein to be correct, though. One offshoot of his work relates to whether any solid mass could ever travel at the speed of light, for if you re- arrange the equation, the nearer an object travels to the speed of light, the greater the mass has to become. At the speed of light, the mass should become INFINITE.
2016-05-23 22:12:52 · answer #4 · answered by Audrey 4 · 0⤊ 0⤋
A, mass is convertible to energy and energy to mass,
2007-02-14 17:11:57 · answer #5 · answered by blinkky winkky 5 · 0⤊ 0⤋
Energy...so A is the answer
2007-02-14 03:02:44 · answer #6 · answered by Anonymous · 1⤊ 0⤋
Quiere decir que la materia es simplemente otra forma de energía.
2007-02-14 03:13:18 · answer #7 · answered by martin_villafuerte85 2 · 0⤊ 0⤋
A. To show that mass and energy are interchangeable. :-)
2007-02-14 03:30:01 · answer #8 · answered by goh j 1 · 0⤊ 0⤋
It would have to be A.
2007-02-14 06:44:59 · answer #9 · answered by Billy Butthead 7 · 0⤊ 0⤋
It means BOOM!
2007-02-14 03:10:37 · answer #10 · answered by Anonymous · 0⤊ 0⤋