A Joule's apparatus drops a 43.9 kg hanging mass 83 cm, which causes a stirrer to spin in a sealed chamber filled
with 430 ml of water.
Assuming no energy is lost to the environment,
determine the temperature change of the water. Specific
heat of water = 4186 J/kg•°C.

it doesn't. it was imagined up in the middle ages.

  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