The assembly of two 5-kg spheres is rotating freely about the vertical axis at 40 rev/min with . if the force f which maintains the given position is increased to raise the base collar and reduce to , determine the new angular velocity . also determine the work u done by f in changing the configuration of the system. assume that the mass of the arms and collars is negligible.

Acricket ball of 70g moving with a velocity of 0.5 m/s is stopped by a player in 0.5s what is the force applied to stop the ball

Will give brainliest! which statement best describes the similarities between fundamental forces? electromagnetic and strong nuclear forces influence the interaction between charged particles within an atom. gravitational and magnetic forces are both types of charges that occur in nature. nuclear and magnetic forces are both related to mass and weight. strong nuclear force is most like electrical force because they are both related to distance.

What is the average speed of a car that travels 40 mph for 1 hour and 60 mph in another hour?