Physics
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A nurse uses a hydraulic lift to transfer a patient from a bed to a chair. The hydraulic piston has an area of 0.02 m2. If the patient has a mass of 80 kg, determine the gauge pressure of the hydraulic fluid
A mechanic standing on a hydraulic lift supports three 120 kg motorcycles at a height of 1.2 m above the mechanic's piston. The hydraulic lift is filled with oil, and the mechanic's piston has a radius of 6 cm. Calculate the radius of the piston lifting the motorcycles if the mechanic's mass is 72 kg. Assume that oil has a density of 900 kg/m3.
An 85 kg mechanic balances a 1450 kg car on the hydraulic lift shown below. When a second person joins the mechanic, the mechanic's piston goes down, creating a 38 cm height difference between the two pistons. Determine the mass of the second person. Take incompressible fluid density as 930 kg/m3.