An electron moves through a region of uniform electric potential of -300 V with a (total) energy of 400 eV. What are its (a) kinetic energy, (b) momentum, (c) speed, (d) de Broglie wavelength, and (e) angular wave number

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?

Which boundary is associated with the building of the himalaya mountains? convergent transform divergent hot spot

Gasoline comes from petroleum, which is made from ancient living things. petroleum, therefore, contains a type of energy. a. heat b. nuclear c. biological d. chemical potential