Solve each problem involving the basic properties of thermodynamics and fluid mechanics. Write your complete solution on a separate sheet paper. Use two decimal places for your final answers.

Note: Use the table of standard atmospheric pressure for the conversion of the pressure units

Problem 4: Pascal's Principle are widely used in engineering especially in the field of hydraulics. On figure 3, a hydraulic press is used to lift a 10 kN weight. The fluid used in the hydraulic press is oil with a specific gravity of 0.82. Calculate the required force needed on the handle to support the weight. Neglect the weight of the two pistons. Tip: Use the principle of pascal's law to find the force of the fluid at 25 mm diameter piston and the moment of forces in solving the force required on the handle. 10 kN F =?N D = 75 mm - 25 mm =4 100 mm D = 25 mm Handle Oil Hinge Pistons Figure 3. Hydraulic Press