Which of these increases the kinetic energy of a car the most? A. Doubling the mass

B. Doubling the velocity

C. They are the same

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 11.0 m: (a) the initially stationary spelunker is accelerated to a speed of 4.80 m/s; (b) he is then lifted at the constant speed of 4.80 m/s; (c) finally he is decelerated to zero speed. how much work is done on the 78.0 kg rescue by the force lifting him during each stage

Diamond will scratch quartz. true or false

What is the increase in density of a medium due to wave travel?