0.0 A 30-kg ball is sitting on top of a 50 m hill. The ball rolls down the hill. As the ball reaches the very bottom of the hill, what is its
velocity? (Assuming no energy is lost due to friction. This would mean that the PEtop = KEbottom)

The 10-kg double wheel with radius of gyration of 125mm about o is connected to the spring of stiffness k = 600 n/m by a cord which is wrapped securely around the inner hub. if the wheel is released from rest on the incline with the spring stretched 225 mm, calculate the maximum velocity v of its center o during the ensuing motion. the wheel rolls without slipping

Awheel of mass 48 kg is lifted to a height of 0.8 m. how much gravitational potential energy is added to the wheel? acceleration due to gravity is g = 9.8 m/s2. a. 30.4 j b. 3.1 j c. 297.9 j d. 11,321 j

Explain the difference in reactivity of the elements based on their electron configurations.