None I mean you have to take a drivers test but you will have to take the knowldege test twice
The potential energy of a 30N ball on the ground will be zero. With respect to height, h. Potential energy will be calculated like this. P=mgh. So if its on the ground relatively speaking the h=0. Thus inputting into the above formula. P=0.
The answer is 15.0N its explained in newtons third law hope this helps:)
Answer:
3.75s
Explanation:
a = 8.0 m/s V = 30 m/s U = 0 m/s t = ?
t = V - U/a
t = 30 - 0/8
t = 30/8 = 15/4
t = 3.75s
Answer:
Fusion is the change of phase from: solid to liquid.
Explanation:
Fusion is defined as change of of a substance from solid state to liquid state.Also known as melting.
Solid → liquid (Fusion)
Vaporization is defined as change of of a substance from liquid state to gaseous state.
liquid → gas (vaporization)
Freezing is defined as change of of a substance from liquid state to solid state.
liquid → solid (solidification)
Deposition is defined as change of of a substance from gaseous state to solid state.Also known as melting.
Gas→ solid (deposition)
Sublimation is defined as change of of a substance from solid state to gaseous state.Also known as melting.
Solid → gas (sublimation)
Condensation is defined as change of of a substance from gaseous state to solid state.Also known as melting.
Gas→ liquid (Condensation)