According to the law of conservation of energy, energy is not created or destroyed. it changes form or is transformed. what energy transformation(s) is/are depicted here? a) electrical energy ⇒ light energy b) potential energy ⇒ kinetic energy ⇒ light energy c) chemical energy ⇒ electrical energy ⇒ light energy d) chemical energy ⇒ electrical energy ⇒ heat and light energy

the answer is kevlar

  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

when two balls of the different masses are dropped from equal height, they reach the ground at the same time .this is because they experience the same acceleration.

the acceleration is independent of mass.

thus when they are dropped they will always maintain the same velocity and travel the same distance (neglect air resistance of course) at the same time.