Calculate the Tangential Velocity of a ball with mass 0.50 kg rolling in a circle with a radius of 0.75m, if it makes a complete circle in 12s.

Asun-sized star will spend most of its lifetime as a: white dwarf red giant protostar main-sequence star

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.

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