Assessment: Pressure

Why don't we feel crushed by atmospheric pressure?

What determines the buoyant force on a submerged object?

Does a hydraulic press create extra energy when it multiplies force?

A mercury barometer shows a column height of 0.70 m. Find the atmospheric pressure it indicates (ρ = 13,600 kg/m³, g = 9.8 m/s²).

Find the extra pressure (beyond atmospheric) at a depth of 8 m in water (ρ = 1000 kg/m³, g = 9.8 m/s²).

A solid block displaces 0.008 m³ of water when fully submerged. Find the buoyant force (ρ = 1000 kg/m³, g = 9.8 m/s²).

A hydraulic lift has a small piston of area 0.015 m² and a large piston of area 0.6 m². What force must be applied to the small piston to lift a 4000 N load on the large piston?

Why does liquid rise up a straw when you suck on it?

Why does a large steel ship float despite steel being much denser than water?

A manometer shows the liquid on the gas side is HIGHER than the open side. What does this indicate about the gas pressure?