Which describes an object's velocity that changes by the same amount each second? constant acceleration constant time constant speed constant displacement

According to social exchange theory, altruistic behaviors benefit the individual who performs them. t/f

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.

Which is not true about oxygen-17 and oxygen-18?