Aforklift raises a box above the floor and does 2,000 j of work. if the forklift motor consumes 3,000 j of electrical energy from the battery to raise the box, what is the efficiency of the lift?

Efficiency = (useful output energy) / (input energy)

Efficiency = (2,000 J) / (3,000 J)

Efficiency = 2/3

or

Efficiency = 66.7%

a.) travels faster in solids because the particles are closer together.

air is a gas water is a liquid