Halle el modulo de la aceleracion del bloque

Which quantities are scalars? choose all that apply a.distance b.speed c. acceleration d.velocity

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?

Observations show that interstellar clouds can have almost any shape and