Stored mechanical energy is energy stored and awaiting to be used and mechanical energy is the energy that was stored being used.
Yeah, it would be B (1.2 x 102 m^3) because the measurement gave it away even though other numbers were higher, however, the measurements for those were smaller in size.
Explanation:
When an acid reacts with a base then it results in the formation of salt and water.
is an acid and 
is a base thus, when we dissolve ammonium hydroxide in nitric acid then it results in the formation of ammonium nitrate and water.
The reaction is as follows.
Hence, there will be formation of ammonium nitrate 
salt.
Answer:
Hydrogen is an element
Explanation:
Hydrogen is an element with only hydrogen atoms, whereas air, carbon dioxide, and water are all made up of multiple elements with different types of atoms.
