About how much gravitational potential energy is stored in an object with a mass of 4 kg that is at rest at a height of 8 meters above the ground? (Use 10 m/s/s as the gravitational acceleration). Question 3 options:

128 J

320 J

32 J

0 J

it should be C I have has this question before

Gravitational potential energy = mgh

m=mass of the body

g= acceleration due to gravity

h=height

P.E=4*8*10=320

P.E=320J

Explanation:

u=13

v=30

s/t=u+1\2at

=13+431/2

=13+265.5

=278.5

current and voltage can both be different in different parts of a circuit so it matters where you place the ammeter and voltmete