In the figure below, a 6.00 g bullet is fired horizontally at two blocks at rest on a frictionless tabletop. The bullet passes through the first...

In the figure below, a 6.00 g bullet is fired horizontally at two blocks at rest on a frictionless tabletop. The bullet passes through the first block, with mass 1.20 kg, and embeds itself in the second, with mass 1.80 kg. Speeds of 0.630 m/s and 1.40 m/s, respectively, are thereby given to the blocks. (Note: You may neglect the mass removed from the first block by the bullet.)(a) Find the speed of the bullet immediately after it emerges from the first block.(b) Find the bullet's original speed.(c) How much mechanical energy was dispelled into the environment during the bullet's collision with the first block?(d) How much mechanical energy was dispelled into the environment during the bullet's collision with the second block?