Scientist found evidence that mars may once have had an ocean that is 0.500 km deep. The acceleration due to gravity on mars is 3.71 m/s2. What would be the fluid pressure (in Pa) at the bottom of the ocean ?

A vertical test tube has 3 cm of oil floating (density of 900 kg/m3 ) on 9 cm of seawater (density = 1030 kg/m3).   Find the pressure at the bottom of the tube due to the fluids on it.  Express your answer in kPa.

Invalid path. The figure below shows the essential parts of a hydraulic brake system. The area of the piston in the master cylinder is 1.8 cm? and that of the piston in the brake cylinder is 6.4 cm?. The coefficient of friction between shoe and wheel drum is 0.50. If the wheel has a radius of 32 cm, determine the frictional torque about the axle when a force of 33 N is exerted on the brake pedal. N. m Wheel drum Pedal Shoe Master Brake cylinder cylinder

You come across an open container that is filled with two liquids. Since the two liquids have different densities, there is a distinct separation between them. Water, which has a density of ?w=1.00×103 kg/m3, fills the lower portion of the container to a depth of 0.200 m. The fluid that is floating on top of the water is 0.307 m deep. If the absolute pressure on the bottom of the container is 1.049×105 Pa, what is the density, ?l, of the unknown fluid? The acceleration due to gravity is ?=9.81 m/s2 and atmospheric pressure is ?0=1.013×105 Pa.