12.4.2 Test (CST): Energy Question 20 of 20
Which person has the most potential energy?
A. A person sitting in a chair
B. A person walking
C. A person riding a bicycle
D. A person sitting at the top of a slide
SUBMIT

Porque crees que el agua no podia subir mas de 10 m de altura con ese tipo de bomba

If the speed of a particle triples ,by what factor does its kinetic energy increase?

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