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Determine the mass (in kg) and weight (in N) of the air contained in a typical school classroom whose dimensions are 40 ft x 60 ft x 12 ft. Make suitable assumptions for temperature and pressure given that the classroom is at Penn State in University Park, PA, (in Central Pennsylvania) and it is a typical Memorial Day (late May) weekend.
a 4m long quarter-circular gate of radius 3 m and of negligible weight is hinged aboutnbspits upper edge a. the gate
a spherical copper shell of inside radius 5cm and wall thickness 1cm loses heat to the surrounding air which is
Determine the size of the contact patch, the contact stresses, and the maximum shear stress for a 40 mm diameter steel cylinder, 25 cm long, rolled against a flat plate with a 4 kN force pressing the cylinder onto the flat plate.
A 680 liter oxygen tank is filled to the pressure of 13.7 Mpa, and used to help a respiratory patient in a room with a temperature of 20 degrees C. During one treatment, 135 Liters of oxygen is supplied from the tank to the patient. The tank is then ..
A 90 kg pilot ejects from a plane and reaches a steady state velocity of 30 m/s with one parachute open. Neglect any air drag force on the pilot and assume that the air drag force can be modeled as an ideal damper i.e. linearly proportional to the ve..
a spherical cryosurgical probe may be imbedded in diseased tissue for the purpose of freezing and thereby destroying
the 1.25 in diameter steel shaft bc is built into the rigid wall at c and supported by a smooth bearing at b. the lever
in a compton experiment an electron attains a kinetic energy of 0.1 mev when a 0.5mev x-ray strikes it. determine the
air enters a gas turbine with two stages of compression and two stages of expansion at 100 kpa and 17 degrees celcius.
water at 20degc flows past a circular cylinder in cross-flow at a freestream velocity of 0.5 ms. the cylinder is 0.02m
Methane gas flows through a horizontal constant area pipe of 15 cm diameter. At section 1 p1=6 bars, T1=66 C and v1=30 m/s. At section 2 T2=38 C and V2=110 m/s.
a set of steel reinforcing rods is to be stretched axially in tension to create a tensile stress of 30ksi prior to
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