HELP A rock resting high on a cliff is an example of an object with what type of energy? (2 points) A) Kinetic energy because it is doing work

B) Kinetic energy because it has the ability to do work

C) Potential energy because it is doing work

D) Potential energy because it has the ability to do work

Two particles of masses m and 2m are placed on a smooth horizontal table. a string, which joins these two masses, hangs over the edge supporting a pulley, which suspends a particle of mass 3m.the pulley has negligible mass. the two parts of the string on the table are parallel and perpendicular to the edge of the table. the hanging parts of the string are vertical. find the acceleration of the particle of mass 3m.

Density of salty water as compared to the density of pure water is(a) is less(b) is always equal(c) is always more(d) may be less or more

What is the most useful equation for electric power?