Help! A ball is +8 m from the origin and moves -13 m. What is the ball's final position?
A. 21 m
B.-21 m
C. 55 m
D. -5 m

D. -5

It is -5 because you subtract 13 from 8 to get to the answer.

  the unit of the measure =

explanation:

  the property that is quantified by the energy needed per of material to raise the temperature by one.

  si unit of energy = joule (j)

  si unit of temperature = kelvin (k)

  si unit of mass of material = kilogram (kg)

the property that is quantified by the energy needed per of material to raise the temperature by one is called specific heat.

the unit of specific heat is