Curtis drops a 2kg coconut from a 16 m high tree. determine the potential energy, kinetic energy, and speed of the coconut at each height. remember to use the idea of conservation of energy. the initial speed of the coconut is 0 m/s pls fill in the table!!

What is the role of the ocular lens?

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?

What are the factors that affect the resistance of a wire?