Will mark brainilest and I will give 5 stars: Part A: A ball of mass ,3.5kg rolls all the way down a slope inclined at 40∘ to the horizontal, with a base of length 4.8m. How much GPE does the ball lose?

Part B: If the average frictional forces are 4.0N, work out how much work the ball does against friction.

Electromagnetic induction. a coil of wire contains n turns and has an electrical resistance r. the radius of each turn is a. initially, inside the coil there exists a uniform magnetic field of magnitude b0 parallel to the axis of the coil. the magnetic field is then reduced slowly. the current induced in the coil is i. how long does it take for the magnitude of the uniform field to drop to zero?

Aracecar driver has to hold on tightly when going around a banked curve. approximately what is the centripetal force on a 2220.0 kg car going around a circle with a diameter of 190.0 meters at 25.0 m/s?

How much energy is supplied to each coulomb of charge that flows through a 12-v battery?