Answer:
4m
Explanation:
you divide 20m/s by 5 seconds
Potential energy due to gravity = Ep = mgh [symbols have their usual meaning ]
Evidently, HALVING the mass will make Ep , HALF its previous value. So, It will be halved.
Answer:
he did twice as much since the first student carried the backpack for 1 mile whilst the second one carried it for 2 miles
Explanation:
I would say diamond because of how durable of a material it is. The light also travels the slowest for m/s.