Assume a stellar atmosphere of pure helium. (a) find i at t=15,000k. assume ni the electron pressure in the atmosphere is pe 20 n /m2. calculate how this would change for t 5,000k and t 25,000 k. helium has two electrons and so can be doubly ionized, he iii. (b) what is nat t-15,00ok. calculate how this would change for t = 5,000k and t 25,000 k. (c) how does l compare to as the temperature changes? describe why this occurs ni

1) when you rub your hands together quickly, the kinetic energy is converted to mechanical energy.2) thermal energy from the sun travels to earth as infrared waves.3) energy is transferred through the matter of space by electromagnetic waves. 4) when a match is burned, chemical potential energy is converted to thermal and radiant energy. 5) seismicwaves are caused by back and forth movement , or vibration, of an object. 6) mechanicalenergy in an engine changes thermal energy into kinetic energy to make a car move.

That would be the corect answer hope this

C. it comes from the core of the earth.