D?.... I think? My guess anyway
A. The metal shield will heat up, and then heat the air on the student's side of the shield.
Answer:
B. change
Explanation:
In a chemical reaction, the bonds in the molecules break apart and form new ones, thus b is the correct answer because they change.
kinetic energy or potential energy
sorry idek i learned this like 2 years ago
So,
GPE (graviational potential energy) = mass x g x height
GPE is depends on where zero height is defined. In this situation, we define h = 0 as the initial height.



The builder has gained 18.375 kJ of PE.