Please explain.
2007-03-31 08:23:27 · 4 answers · asked by SomeGirl 3 in Science & Mathematics ➔ Physics
energy, E=force * distance =FL
F=MA=MLT^(-2)
=> E=MLT^(-2)*L
E=M L^2 T^(-2)
2007-03-31 08:28:01 · answer #1 · answered by Adam B 2 · 1⤊ 1⤋
Kinetic energy = (1/2)mv^2. So that is in SI units of kg*m^2/s^2, or kilograms X meters^2 / seconds^2.
Looking at the previous post, I see you want dimension, not units. So that would be Mass X Length^2 / Time^2, as in the previous post.
2007-03-31 08:31:42 · answer #2 · answered by robert 3 · 1⤊ 0⤋
The primary model of physics in use today postulates 4 dimensions of space and time. Anything that exists must exist in all 4 dimensions. Nothing can exist that does not exist in all 4. Since energy exists, it must exist in all 4 dimensions.
2007-03-31 13:00:24 · answer #3 · answered by Fred 7 · 0⤊ 0⤋
same three you are thinking of - plus seven other if you think of the string theory. In fact energy and matter are different forms of the same thing. Think of water - a liquid? or is it a solid -ice, gas - steam perhaps a plasma or maybe it is broken down two three basic atoms.
2007-03-31 11:12:30 · answer #4 · answered by Anonymous · 0⤊ 0⤋