Apitched ball is hit by a batter at a 45degrees angle and just clears the outfield fence, 98m away. assume that the fence is at the same height as the pitch and find the velocity of the ball when it left the bat. neglect air resistance.

Which type of wave can travel without a medium

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.

An atom that has gained or lost electrons is called an _