A scuba diver releases spherical air bubble of diameter 3 cm, from a depth of 14 m. Assume the temperature is constant at 25oC and that the air inside the bubble behaves as an ideal gas. Find the heat added or removed from the air as it rises.

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.

Suppose an objects initial velocity is 10m/s and it’s final velocity is 4 m/s. mass is constant. what can best be concluded about the object based in the work-energy theorem

Positrons are spontaneously emitted from the nuclei of