A roller coaster starts from the top of a hill at rest with a potential energy of 3300 J.

An air bubble of volume 20 cm³ is at the bottom of a lake 40 m deep, where the temperature is 4.0°c. the bubble rises to the surface, which is at a temperature of 20°c.take the temperature of the bubble’s air to be the same as that of the surrounding water. just as the bubble reaches the surface, what is its volume?

=force × distance a. work b. velocity c. pressure d. momentum

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