Which of the following is an example of a safe laboratory produced? a) eating or drinking from laboratory glasware b) tying back long hair and lose clothing c) testing an odor by directly inhaling the vapor d) touching hot objects with your bare hands

A200-n force is applied to the foot-operated air pump. the return spring s exerts a 2.6-n·m moment on member oba for this position. determine the corresponding compression force c in the cylinder bd. if the diameter of the piston in the cylinder is 40 mm, estimate the air pressure generated for these conditions. state any assumptions. enter a positive number for the compression force c.