I yeet a mystery package off the bridge. It lands in the water 2.00 meters away from me in the horizontal direction. The bridge is 10.0 meters high. How fast was the package going when I yeeted it?

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.