Apump is to lift 18 kg of water per minute tthrough a height of 3.6 m. what output rating (watts) should the pump have?

Simple machines can a. increase force only b. decrease force only c. increase or decrease force

What is special about a dc circuit ?

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