A boy raises a 20.0 Kg rock 2.3 meters. What is the force that the boy uses to raise the rock?

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.

Individuals who live below the poverty line get seriously ill more often than those who do not what could be the hidden variable in this situation?

What occurs during a combustion reaction