Two objects move with initial velocity 28.00 m/s, final velocity 16.0 m/s, and constant accelerations. (a) the first object has displacement 20.0 m. find its acceleration. (b) the second object travels a total distance of 22.0 m. find its acceleration.

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.