4) you have a spring-loaded air rifle. when it is loaded, the spring is
compressed 0.3 m and has a spring constant of 150 n/m. in joules, how
much elastic potential energy is stored in the spring?

see earlier

c. magnitude and direction

  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

i think the answer is a and b

i wish you luck