The diameter of a gold nucleus is about 10^-15 m. Because gold is fairly massive, this implies a very high nuclear density. What's the density of a gold nucleus, in kilograms per cubic meter? The mass of a gold atom is a good approximation for this purpose.

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.