9As a student walks downhill at constant speed, his gravitational potential energy (1) increases and his kinetic energy increases
(2) increases and his kinetic energy remains the
same
(3) decreases and his kinetic energy increases
(4) decreases and his kinetic energy remains the
same

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Explanation:

4).

i think the answer would be reserve.

  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