The blades of a windmill sweep out a circle of area A a If

Last updated: 6/13/2023

The blades of a windmill sweep out a circle of area A a If the wind flows at a velocity v perpendicular to the circle what is the mass of the air passing through it in time t b What is the kinetic energy of the air c Assume that the windmill converts 25 of the wind s energy into electrical energy and that A 30 m v 36 km h and the density of air is 1 2 kg m What is the electrical power produced C