Two objects with different masses speeding towards each other collide and stick together after the collision. The system (composed of the two masses, only) was completely isolated. Select all that apply. (a) Momentum was conserved but mechanical energy was not conserved. (b) The internal energy of the system decreased during the collision. (c) The internal energy of the system increased during the collision. (d) The kinetic energy of the system after the collision is equal to the sum of the kinetic energies of both masses before the collison. (e) During the collision, the two masses received equal (magnitude) and opposite (direction) impulses