The specific gravity of an object is 0.957, whereas that of seawater is 1.025. What percent of an object is above the surface of the water?

An airplane wing is designed so that the speed of the air across the top of the wing is 256 m/s when the speed of the air below the wing is 228 m/s. The density of the air is 1.29 kg/m3. What is the lifting force on a wing of area 24.0 m2?

The bottom of a rectangular swimming pool is 15 m × 25 m. If the atmospheric pressure above the swimming pool changes from 738 to 768 mm of mercury, determine the amount by which the force on the bottom of the pool increases? (Assume the density of mercury is 13.6 ✕ 103 kg/m3.)

A company has several sensors in storage silos to detect the total pressure in the silos to ensure the tanks will not leak. Each tank is designed to withstand a maximum total pressure of 5.7 atmospheres​ [atm]. An engineer wants to use one of the silos to store liquid nitric​ acid, which has a density of 97​ pound-mass per cubic foot [lbm​/ft3​]. If the tank is filled to a depth of 90 feet​ [ft], how much surface pressure in units of atmospheres​ [atm] can be applied to the top of the liquid inside the tank without exceeding the maximum total pressure of the​ silo?