Ababy and stroller have a total mass of 20. kilograms. a force of 36 newtons keeps the stroller moving in a circular path with a radius of 5.0 meters. calculate the speed at which the stroller moves around the curve. [show all work, including the equation and substitution with units.]

First answer marked as brainiest which is the correct equation describing the first law of thermodynamics? a) when the internal energy of a system changes, it equals the amount of heat added plus the work done. b) when work is done by the piston, it is equal to the heat added plus the change in internal energy of the system. c) when heat is added to the system, it is equal to the amount of work done by the piston plus the change in internal energy of the system.