How much potential energy does a 75 kg diver have stepping off the edge of a 5 meter platform?

3.678kJ

Explanation:

Given

mass= 75kg

height= 5 m

g= 9.81m/s^2

Required

Potential energy

PE= mgh

substitute

PE= 75*9.81*5

PE=3678.75J

PE= 3.678kJ

an ion is a charged atom or molecule. it is charged because the number of electrons do not equal the number of protons in the atom or molecule. an atom can acquire a positive charge or a negative charge depending on whether the number of electrons in an atom is greater or less then the number of protons in the atom.

f=ma newton

f=100x2.5=250n