It takes 86 joules of energy to raise a box 2 meters using the pulley setup shown above.

without the pulley, the box can be raised 2 meters using only 82 joules of energy. what could explain this 4-joule difference?

Although longitudinal waves can travel through all media types what is the disadvantage of this type of wave transmission? a) he efficiency of he wave transmission is greatly diminished as the media becomes less dense b) the oscillation of one set of particles has a huge impact on neighboring particles c) particles become too close together as they bump into each other making it more likely to hit other particles down the line

Ryan is examining the energy of the particles in a bar of gold. what is ryan most likely studying?

The total amount of energy contained in an object