A string is wrapped multiple times around a massive pulley of radius 0.3 meters. A mass is attached at the free end of the string, as shown in the image above. The mass is released at t=0 seconds. Assume friction in the pulley is negligible. This pulley has a moment of inertia of 59 kg·m2. Immediately after t=0, the tension in the rope is 22 newtons. What will be the angular velocity of the pulley after 4 seconds?

Find v(t), given acceleration a(t)=7j and initial velocity v(0)=k

Which lists the pairs of plates in order from least to greatest in terms of the work done to move the electron?

Ametal ring 4.20 cm in diameter is placed between the north and south poles of large magnets with the plane of its area perpendicular to the magnetic field. these magnets produce an initial uniform field of 1.12 t between them but are gradually pulled apart, causing this field to remain uniform but decrease steadily at 0.240 t/s . (a) what is the magnitude of the electric field induced in the ring? (b) in which direction (clockwise or counterclockwise) does the current flow as viewed by someone on the south pole of the magnet?