What is the mechanical efficiency of a pulley that requires Time to use 900 J of work to pull on the pulley as the pulley uses 300 J of work to lift a box? 300%
33%
600%

Immediately upon reaching its lowest point, a falling pendulum bob has its greatest amount of energy, which is the initial amount of potential energy. a. heat; less than b. heat; more than c. kinetic; less than d. kinetic; more than

Which atomic model was proposed as a result of j. j. thomson’s work?

What is similar between metals and suspensions