Sally says that divergent plates cause the greatest, strongest Earthquakes. Marks says she's wrong. Tell me who is correct, and how do you know? * i will give 16 points for help plz help

The percent efficiency of a machine can never be 100% (or greater), because in the real world some energy is always converted into a. heat b. work c. input force d. output force

The softest and hardest minerals are: softest hardest

A0.580-kg rock is tied to the end of a string and is swung in a circle with a radius of 0.500 meters. the velocity of the rock is 4.50 m/s. what is the centripetal force acting on the rock? 15.5 n 5.22 n 69.8 n 23.5 n