A 700 N lady wearing stilettos walks with one foot on the ground. Find the pressure exerted on the ground by the lady assuming her entire weight is supported by one heel. The area of the heel is 2.00 cm2. Compare this to the pressure exerted by 30,000 N elephant that walks with two feet. The total area of the feet is 560 cm2.

What is the average pressure on the soles of the feet of a standing 90.0 kg person due to the contrast force with the floor? Each foot has a surface area of 0.020m^2

The water pressure acting on a submarine at depth is 2.6 x 106 Pa.  What is the magnitude of the force (in kN) that acts on a hatch door with an area of 0.87 m2

On another planet that you are exploring, a large tank is open to the atmosphere and contains ethanol. A horizontal pipe of cross-sectional area 7.0×10−4m27.0×10−4m2 has one end inserted into the tank just above the bottom of the tank. The other end of the pipe is open to the atmosphere. The viscosity of the ethanol can be neglected. You measure the volume flow rate of the ethanol from the tank as a function of the depth hh of the ethanol in the tank. If you graph the volume flow rate squared as a function of hh, your data lie close to a straight line that has slope 2.09×10−5m5/s22.09×10−5m5/s2.   What is the value of gg, the acceleration of a free-falling object at the surface of the planet? Express your answer with the appropriate units.