An electric kettle is rated at 25 W. Calculate the quantity of heat generated in 2s.

What is magnetic flux? explain faraday's law of induction.

Which force is most responsible for binding together an atom's protons and neutrons? electrostatic gravitational nuclear magnetic

Acave rescue team lifts an injured spelunker directly upward and out of a sinkhole by means of a motor-driven cable. the lift is performed in three stages, each requiring a vertical distance of 10.0 m: (a) the initially stationary spelunker is accelerated to a speed of 4.90 m/s; (b) he is then lifted at the constant speed of 4.90 m/s; (c) finally he is decelerated to zero speed. how much work is done on the 68.0 kg rescue by the force lifting him during each stage?