Fill in the blanks and answer this 3 questions correctly (show your work) and earn 10pts and the brainlist answer!

15.KINETIC ENERGY,1890J

16.potential energy,315J

17.kinetic energy 1792KJ

Explanation:

kinetic energy is the energy of a body possesses when in motion or in movement.

Potential energy is the energy a body possesses due to its position. it is also called the energy of position

15. the volleyball has been served and is therefore in motion. it has kinetic energy

K.E=m.v²

m=2.1kg

v=30m/s

K.E=2.1 × 30²

=2.1×900=1890J

16. The carriage is sitting at a position on the hills. It has potential energy

P.E=mgh

m=1.5kg

g=10m/s²

h=21m

P.E=1.5×10×21

=315J

17. The car is trravelling. it is in motion. it has Kinetic energy

K.E=mv²

m=1120kg

v=40

K.E=1120×40²

1120×1600=1792000J

=1792KJ

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explanation:

physics means: "the branch of science concerned with the nature and properties of matter and energy. the subject matter of physics, distinguished from that of chemistry and biology, includes mechanics, heat, light and other radiation, sound, electricity, magnetism, and the structure of atoms."