Answer:
less energy is needed to heat the house
the roof is a better insulator
Answer:
a baseball player swinging a bat and hitting a baseball, causing the bat to shatter
Explanation
took the test, hope it helps
Answer:
There are 45 turns in the secondary coil.
Explanation:
Given that,
Input potential of the lamp, 
The output potential of the lamp, 
Number of turns in primary coil, 
We need to find the number of turns needed on the secondary coil. We know that the ratio for a transformer is as follows :

So, there are 45 turns in the secondary coil.
They both move in the opposite direction in which they hit
This is kinetic energy to heat energy