Force to Overcome Vacuum Pull
Force to Overcome Vacuum Pull
This Demonstration calculates the force needed to open a circular cover or door of an evacuated container, vacuum oven or drier, or the like as a function of the cover or door's diameter and the absolute pressure inside. The atmosphere's exerted pressure is manifested as a "vacuum pull". The results are shown graphically and numerically in kilonewtons, kilograms force, and pounds force.