A m = 3 g bullet traveling horizontally at 400 m/s hits a M = 3 kg wooden block,
which is initially at rest on a smooth horizontal table. The bullet buries itself in the block
without passing through.
The speed of the block after the collision is:

Select all the correct answers. which changes will increase the rate of reaction during combustion? decreasing the area of contact between the reactants adding more oxygen to the reaction removing heat from the reaction changing the reactants from solid form to powdered form lowering the exposure of the reactants to air