The Grinch, who has the strength of "ten men, plus two”, is about to lift a "Sled Full of Christmas" over his head and run up the hill to a height of 21.3 m. The total mass of the
Grinch and the sleigh full of toys is 502 kg?

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?