A uniformly charged thin ring has radius 14.0 cmand total charge 22.0 nC . An electron is placed on the ring's axis a distance 34.5 cm from the center of the ring and is constrained to stay on the axis of the ring. The electron is then released from rest.

Part A Describe the subsequent motion of the electron.

Part B Find the speed of the electron when it reaches the center of the ring.

Adiver in midair has an angular velocity of 6.0 rad/s and a moment of inertia of 1.2 kg·m2. he then pulls is arms and legs into a tuck position and his angular velocity increases to 12 rad/s. the net external torque acting on the diver is zero. what is his moment of inertia in the tuck position?

How does the amount of energy required to hold each proton and neutron in the nucleus compare to the energy released when they are removed?

Click the game tab at the bottom of the simulation and select level 1. (there is no seesaw balance for this part of the activity.) balance the first equation, and click check to see if you got it right. if you can’t balance it in the first try, you can try again. work through the five equations for level 1. click continue to go on to level 2, and later level 3. each level is more difficult than the one before. keep trying until all the equations are balanced. in one or two sentences, describe how you did in the balancing game. in a few more sentences, explain one strategy you learned for balancing more complex equations.