Arock (mass 45 kg) falls into a ravine. what is the force of air resistance when it has reached terminal velocity.? 9.8 n 221 n 340 n 441 n

  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

the answer is f1 and d2 because if you put equal force on those two points the beam would balance trust me on this