An object ‘A’ of mass 3.0 kg moving with velocity 21 m/s, collides inelastically with another object ‘B’ of mass 5.0 kg moving with velocity 8.0 m/s.

After collision object ‘B’ starts to move with velocity 2.0 m/s,

a) Find the velocity of an object ‘A’ after collision?

b) Calculate KE before and after collision?

c) Is KE conserved?

5points ! is potential chemical energy always transformed into kinetic

Which of these describe conduction transfer of heat between two objects that are touching transfer of heat by the actual movement of war matter the process in which energy is imitated by one of the object transmitted through space and absorbed by another a process in which energy is released by the molecules breaking apart

Which configuration would produce an electric current? a) rotate a coil of copper wire between two magnets. b) connect a wire between a copper and zinc strip sitting in a beaker of water. c) connect a wire to the (+) positive end of a battery and the other end to a light bulb. d) connect a wire to the negative end of a battery and the other end to a light bulb.