Used in the usual sense, radiant energy is just light. When you turn on your electric stove unit, it heats up and emits radio waves, infrared waves, and visible light waves. All of these waves are just light with different frequencies.
<span>p = 39/52 = 3/4 = 0.75 </span> 13 cards each of 4 different suits if you draw a card, there are 39 cards that are not hearts out of 52 all together.
