if the force is proportional to the square of velocity then the dimension of proportionality constant is

How would doubling the made of an object change the objects potential energy

If angle "a" is 25°, angle "b" is: a) equal to angle c b) less than angle c c) greater than angle c

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?