Answer:
The answer is Phase Change
Explanation:
Radio waves are the longest
This question is probably referring to heat energy transferring from the car to its surroundings.
True
The electromagnet will become stronger if we add more coils because there are more field lines in a loop then there is in a straight piece of wire. In a solenoid there are a lot of loops and they are concentrated in the middle, as more loops are added the field lines get larger, therefore making the electromagnet stronger.