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Assuming air to be an ideal gas, what would be the mass of air in a classroom of size 20 ft x 15 ft x 9 ft assuming the pressure inside the classroom is 1 atm and the classroom is at a constant temperature of 20^o C . Would the mass of gas inside the class room change much if the room is filled with N_2? Why?
while holding one of its ends a worker lobs a coil of rope over the lowest limb of a tree. if he throws the rope with
develop the maxwell and kelvin-voigt relations. creep is deformation under constant stress while stress relaxation is
lead shot is formed by dropping molten lead through the center of a high tower. the frictional resistance of the air as
in a water heating system cold water at 5 c flowing at a rate of 5 kgs is mixed adiabatically with hot water at 80 c
q1 figure shows a scale drawing of the temperature profile through a composite plane wall.i identify the layer with the
an industrial water shutoff valve is designed to operate with 40lbs of force and will encounter 150lbs of resistance
what are individual cutting tool with a number of cutting edges. they are useally held on the tool shank with various
Calculate the force required to punch out a rectangular hole 100m x 50mm in a 2mm thick aluminium sheet. The ultimate strength in shear is 125 MN/m^2.
in a single degree of freedom vibrating system the concentrated mas which weighs 38.6 lbs. is acted upon by a
Couette Flow Velocity Distribution, Using the log law, determine the velocity distribution for Couette flow between parallel plates a distance h apart, with U = the velocity of the top plate.
i need you to write a report about heat treatment of steel. i will attach the report format which you need to stick
A commercial heat pump has energy in to the system at a rate of 60 kW from a thermal reservoir. If the power input from an electric motor is 15 kW, (a) determine the power (kW) delivered to the office area. (b) Determine the coefficient of perform..
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