To bring 6.0g of water from 25oC to 99oC takes how much heat input if the specific heat capacity is 4.18J/g/0C?

Which term best describes the phrase “something that happens”?

How much work is done lifting a 9.10 kg box straight up onto a shelf that is 1.80 m high?

This energy transformation diagram represents the energy of a skateboarder moving along a half-pipe. as she skates toward the top of the half-pipe, her original kinetic energy is converted to potential energy and friction. how much of the energy is potential?