A car of mass 400kg accelerate at 2.5m/s2. what is the force acting on the car??

Name the non metal condut electricity

Why do astronauts in the space shuttle weigh less?

Awind turbine is rotating counterclockwise at 0.5 rev/s and slows to a stop in 10 s. its blades are 20 m in length. (a) what is the angular acceleration of the turbine? (b) what is the centripetal acceleration of the tip of the blades at t=0s? (c) what is the magnitude and direction of the total linear acceleration of the tip of the blades at t=0s?