which of the following is true about the frequencies of electromagnetic radiation?
a.
ultraviolet waves have higher frequencies than radio waves.
b.
radio waves have higher frequencies than x-rays.
c.
gamma rays have lower frequencies than ultraviolet waves.
d.
x-rays have lower frequencies than infrared waves.

In a heat engine of 1000 j of heat enters the system and the piston does 500 j of work what is the final internal energy of the system if the inital energy was 2000 j we have to do all of these down here 1)write the equation 2)list out your know variables 3)plug the numbers into the equations 4)solve 5)write your solution statemtn that includes inital energuy and final energuy added