A father with twice the mass of his daughter is watching her skate as he is standing still on ice with his skates on. She approaches him with speed v and then grabs him. At what speed do the two of them move? a. 2v.
b. v/2.
c. 3v.
d. 3/v.
e. v.

Calculate the amount of heat produced when 18000 coulombs of charge is transferred in one hour through a potential difference of 50v

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.

What’s #16 asking and how do i solve it?