Its when both sides of a system are at the same temp. for example (sorry is this is a bad example) one of your hand was really cold and one was really hot from running it under hot water and you clamp your hands together the molecules in the hot hand (which are moving much faster due to the heat, will start bumping into the slow moving molecules in the cold hand, until it all balances out and both hands are the same temperature.
I hope the helps :)
It is supernova! :D
A supernova is an astronomical concussion that momentarily surpasses the whole universe, emitting as many energy since the Day-Star(sun) practically any normal star is supposed to release across its whole lifespan, before it disappears from appearance over some weeks or periods.
The difference in frequency of the two signals is 
.
The given parameters;
- <em>frequency of the 13 C signal = 201.16 MHz</em>
The energy of the 13 C signal located at 20 ppm is calculated as follows;
The energy of the 13 C signal located at 179 ppm is calculated as follows;
The difference in frequency of the two signals is calculated as follows;
Thus, the difference in frequency of the two signals is .
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Thick cloud cover over the whole of planet Earth would block out sunlight from reaching the surface. This means that it would lower the temperature on the Earth's surface.
