The cat's walk In its daily walk, a cat makes a 120m move to the north, followed by another 72m to the west. Draw the displacement vectors and determine the magnitude of the total displacement.​

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.