A 0.087 kg bullet is fired and will soon collide with a 3.2 kg wooden block. The bullet has not collided with the block yet. At this time, the bullet and block system can be described as follows: Vbullet = 225 m/s
Vwood block = 0 m/s
What is the total momentum of the system at this time?

Which type of current is produced by a wire breaking magnetic field lines and changing the polarity? a. alternating b. direct c. straight d. alternating and direct

Which of the following statements correctly describes a transformer?

Consider a small frictionless puck perched at the top of a fixed sphere of radius r. if the puck is given a tiny nudge so that it begins to slide down, through what vertical height will it descend before it leaves the surface of the sphere? [hint: use conservation of energy to find the puck's speed as a func e conservation of energy to find the puck's speed as a function of its height at what value of this normal force does the puck leave the sphere? ] here on the puck.