Object A has a momentum of 24kgm/s and hits Object B, which already has a momentum of 15kgm/s. After the collision Object B now has a momentum of 31kgm/s. What must the final momentum of the Object A be?

Which of the following is considered to be a vector?               a.  temperature    b.  velocity    c.  time    d.  mass

What is magnetic flux? explain faraday's law of induction.

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.