Determine the speed of the 50-kg cylinder after it has descended a distance of 2 m, starting from rest. gear a has a mass of 10 kg and a radius of gyration of 125 mm about its center of mass. gear b and drum c have a combined mass of 30 kg and a radius of gyration about their center of mass of 150 mm.

Large electric fields in cell membranes cause ions to move through the cell wall. the field strength in a typical membrane is 1.0 x 10 7 n/c. what is the magnitude of the force on a calcium ion with charge +e? what is its acceleration? is it possible for a particle with the same charge as as calcium to have a different acceleration if placed at this location? what would change the acceleration: mass of the particle? diameter of the particle?