(03.02 LC)In a free body diagram, the force of friction will point in the direction that is

(03.05 HC)A ball of mass 0.34 kg and a velocity of +4.9 m/s collides head-on with a ball of mass 0.75 kg that is initially at rest. No external forces act on the balls. After the collision, the velocity of the ball which was originally at rest is +2.16 m/s. What is the velocity of the 0.34 kg ball after the collision? Remember to include your data, equation, and work when solving this problem.

(03.07 MC)A moving car has a kinetic energy of 9.10 E4 J. The mass of the car and its contents is 1,220 kg. What is the speed of the car?

(03.09 LC)If friction is present when an object is dropped and hits the ground, how does its kinetic energy just before striking the ground compare to its gravitational potential energy at the top of the drop?

(03.01 LC)Which of the fundamental forces holds the nucleus of an atom together?

(03.02 MC)Choose the force diagram (free body diagram) that best represents the forces acting on the object. The effects of air resistance are negligible.A ball that was thrown upward into the air at the top of its flight:

(03.07 MC)A car with mass m traveling at speed v has kinetic energy K. What is the kinetic energy of a second car that has double the mass and the same speed of the first car?

(03.09 MC)A 47.0-kg diver jumped to a maximum height of 13.0 meters. From there, the diver falls from rest and hits the pool at a speed of 9.23 m/s. How much energy was transferred into thermal energy during the fall?

(03.09 MC)A 48.0-kg diver jumped to a maximum height of 11.0 meters. From there, the diver falls from rest and hits the pool at a speed of 8.81 m/s. How much energy was transferred into thermal energy during the fall?

(03.04 LC)An object is attached to a string. It is twirled in a horizontal circle above the ground at a speed according to the image below.The direction of the object’s velocity at its location shown points toward which letter?