(7 pts) Part d on Question 21.

(7 pts) Part c on Question 27.

A hollow ball of mass = kg rolls without slipping down a ramp of height = m, as pictured. At the bottom of the ramp, it rolls onto a frictionless table. It then has a perfectly elastic collision with a mass = kg on a spring with spring constant = N/m. (Q17 ans 2 pts, Q18 work 5 pts) What is the translational speed of the ball at the bottom of the ramp? (Q19, 7 pts) What is the velocity (speed and direction) of the ball directly after the collision. Velocities to the right will be positive. (Q20, 7 pts) What is the maximum compression of the spring after the collision? To continue, please give the translational speed of the ball at the bottom of the ramp (part a) in units of m/s.

A projectile is launched from the surface of the earth. What minimum launch speed is required if the projectile is to rise to a height of the radius of the earth above the surface? Disregard any dissipative effects of the atmosphere.

A uniform meter stick is pivoted to rotate about a horizontal axis through the 25 cm mark on the stick. The stick is released from rest in a horizontal position. The moment of inertia of a uniform rod about an axis perpendicular to the rod and through the center of mass of the rod is given by Determine the magnitude of the initial angular acceleration of the stick.

We roll a solid ball of mass and radius down a particular incline plane of height When the ball reaches the bottom, the translational speed of the ball is If we send a ball with half the radius down the same incline plane, what is the new translational speed at the bottom of the inclined plane?

Which of the following viral diseases has been eliminated from the general population world-wide?

During a collision with a wall, the velocity of a 200 g ball changes from 20.0 m/s toward the wall to 12.0 m/s away from the wall. If the time the ball was in contact with the wall was 60.0 ms, what was the magnitude of the average force applied to the ball?

The following map shows the states Illinois, Indiana, Kentucky, West Virginia, and Virginia. Find a route that starts and ends in Virginia and crosses each common state border exactly one time.

Find two different Hamilton circuits for the given graph.   Two Hamilton circuits are and