Windmill is an example of

What is the equation for calculating a machine's efficiency? I searched all over my textbook and couldn't find it, so I decided to post my question here.

An object with the mass is 20kg has a net force of 80 N acting in it. What is the acceleration of the object?

Everyday uses for Conduction, Convection and Radiation

Your friend says that the force that the sun exerts on earth is much larger than the force that earth exerts on the sun. part a do you agree or disagree with this opinion? do you agree or disagree with this opinion? agree disagree

A 100 kg runner has less momentum than a 150 kg runner while running with the same velocity. what can the 100 kg runner do to increase his momentum?

Pascal's principle explains the viscosity of motor oil used in cars. True or False?

A (n) ... is a material that takes in a wave when the wave hits it

A player strikes a hockey puck giving it a velocity of 30.252 m/s. The puck slides across the ice for 0.267 s after which time its velocity is 28.452 m/s. The acceleration of gravity is 9.8 m/s 2.

R,=4.00 R, = 1000.00 MM V = 120 V I What is the total resistance for the circuit in Figure 2?

Which describes the relationship between friction and IMA for a simple machine?