How can a helium airship change its liftweight ratio 8 A pla

How can a helium airship change its lift/weight ratio? 8. A plate or planar surface will experience pressure whenever it is submerged, measured at the not act at the the integral calculation of the location, it is noted that there is an easy formulation that applies to regular geometric shapes. Such shapes are routine illustrated in tables showing the area, centroid, and moments of inertia about the centroid and a force due to pressure can be calculated by multiplying the pressure of its area times the of the surface. This force acts or 90 to the surface but does is not always easy to determine, but in of its area but rather at the of the distribution of pressure. This

Solution

A plate or planar surface will experience pressure whenever it is submerged, and a force due to pressure can be calculated by multiplying the pressure measured at the Centroid of its area times the distance from the free surface of fluid to centroid of the surface. This force acts Normal to the surface or perpendicular (90 degrees)to the surface but does not act at the center of its area but rather at the area centroid of the distribution of pressure. This is not always easy to determine, but in the integral calculation of the location, it is noted that there is an easy formulation that applies to regular geometric shapes. Such shapes are routinely illustrated in tables showing the area, centroid, and moments of inertia about the centroid.