a homogeneous cylinder of radius 22 cm and mass 80 kg is rolling without slipping along a horizontal floor at 5 m/s. how much work was required to give it this motion?

You throw a baseball directly upward at time t = 0 at an initial speed of 12.3 m/s. what is the maximum height the ball reaches above where it leaves your hand? at what times does the ball pass through half the maximum height? ignore air resistance and take g = 9.80 m/s2.

Gordon is going for a run through the park, but it is cold outside. the low outside temperature could affect his personal safety.

Atomic nuclei of almost all elements consist of