Two ice skaters, Karen and David, face each other while at rest, and then push against each other's hands. The mass of David is three times that of Karen. How do their speeds compare after they push off

Which changes of state do the labels represent? a: b: c:

Which object is most likely represented by a dot?

Scout feels ill one day before school. her mother puts a thermometer in her mouth and the temperature begins to climb to 100°f. what is happening between the cooler thermometer and scout's body? a) scout's body is applying a force to the particles in the thermometer. b) kinetic energy is being transferred from her mouth to the thermometer. c) potential energy is being lost by the thermometer and gained by scout's body. d) the potential energy stored in foods is converted to mechanical energy to raise the mercury in the thermometer.