Answer: When 
Explanation:
According to first law of thermodynamics, energy can neither be created nor be destroyed. It can only be transformed from one form to another.


= change in enthalpy
P = pressure
= change in volume
=Change in internal energy
q = heat absorbed or released
w = work done on or by the system

Thus for
, 
The heat evolved or absorbed by the system in a physical or chemical process, equal the change in enthalpy of the system when 
One protons and also it grouped their because how it reacts with other materials such as other substances or materials
Answer:

Explanation:
You need to be careful with units for this problem. The force will be:



"decreasing the distance of the space shuttle from Earth"
F = Gm(1)m(2)/R²
where R is the distance between the 2 objects, as it decreases, the force increases.