A student is trying to determine the muzzle velocity (initial) of a bullet that is too fast to measure directly. The student fires the 0.03kg bullet into a 6kg block of wood initially at rest. After the collision, the block, with the bullet embedded inside moves to the right with a speed of 1.29m/s right. what is the momentum before the collision of both the bullet and the block?
what is the momentum after the collision of both the bullet and the block?
how fast was the bullet fired?

Which of the following is not am example of a polymer? protein nylon kevlar concreta

The volume of a gas is halved during an adiabatic compression that increases the pressure by a factor of 2.5. what is the specific heat ratio? show the math steps .

Because air contracts as it cools, the air pressure inside a freezer is typically lower than on the outside. why do ice cubes inside a freezer tend to shrink over time? a. the ice dissolves oxygen from the air, forming a denser crystalline matrix.b. the ice reacts chemically with carbon dioxide in the air, forming gaseous carbon compounds.c. the ice melts, and then the liquid freezes as ice crystals on the bottom of the freezer.d. the ice sublimes, and then the water vapor deposits as ice crystals on the sides of the freezer.