A stone is thrown vertically upward with an initial velocity of 50m/s. Take g=10m/s². Find the maximum height reached by the stone. What is the net displacement and the total distance covered by the stone when it reaches the initial position?

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?