A 70kg person with very little hair is riding a go kart, 90kg, at K1 at 11 m/s and drives directly into a rail. How far will the bumper spring compress under the collision as everything comes to a stop? The spring bumper has a spring coefficient of 500,000N/m.

The 5-kg cylinder is initially at rest when it is placed in contact with the wall b and the rotor at a. if the rotor always maintains a constant clockwise angular velocity v = 6 rad> s, determine the initial angular acceleration of the cylinder. the coefficient of kinetic friction at the contacting surfaces b and c is mk = 0.2.

The necleus of an atom is made up of what subatomic particles?

Need people build a dam to create a reservoir that supplies water a nearby city needs. describe two ways this action will likely affect the water cycle in the local environment. (5 points) worth 20 points