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Consider fully developed laminar flow between parallel plate. The heat flux through the walls of the chanel is uniform. Derive the analytical expresion for the fully developed temperature profile, a
An inverted conical container, 26 in in diameter and 44 in high, is filled with a liquid at 20degreesC. The liquid weight is 5030 onces. What is the density of the fluid, in kg/m3?
What other factors other than 'protection potential' need to be taken into account when selecting a sacrificial anode material for a steel ocean going vessel?
For steady-state operation, and ignoring heat transfer for the two turbine stages and any effects of kinetic and potential energy, determine the following mass flow rate of the steam (kg/h).
An axial piston pump delivers 0.002 m3/s at 3300 rpm. It has nine 16-mm diameter pistons arranged on a 135-mm piston circle diameter. Calculate the offset angle for the pump if the volumetric effici
Assuming ideal-gas behavior for air, steady flow, and negligible effects of kinetic and potential energy determine the power input (kW) to the compressor.
A subway train with cars A, B and C is traveling at 66ft/s when the brakes are applied on cars A and B causing them to slide on the. No brakes on car C. The coefficient of friction is .30 between th
What is the rate of entropy generation in the turbine when steam enters an adiabatic turbine at 8Mpa and 500oC at a rate of 18kg/s, and exits at 0.2Mpa and 300oC.
Determine the maximum sustainable torque that the solid shaft can handle. Determine the maximum sustainable torque that the tubular shaft can handle.
A string is attached to the drum (radius r) of a spool (radius R) as shown in side and end views here. (A spool is device for storing string, thread etc.) A tension T is applied to the string at ang
The room temperature yield strength of Ni is 100MPa (15,000 psi) and, furthermore, sy diminishes about 5MPa for every 50 degree celsius rise in temperature.
What rate is NH3 is being removed from the feed gas? What is the minimum flow rate of water required to scrub out 90.0% of the incoming NH3? What is the mole fraction of NH3 in the scrubbed waste ga
If the chain has a weight of 3 lb/ft, and the man weighs 150 lb, determine the force he exerts on the ground. Also, how high must h be to lift the chain?
Show the heating-humidification process on a sketch of the psychrometric chart by drawing lines showing the process. Indicate where the air is in the solar collector and where it is in the biomass.
A 45-g bullet is fired with a velocity of 600 m/s into a wooden block which rests against a solid vertical wall. Knowing that the bullet is brought to rest in 0.001 second, determine the average im
A bullet moving at a speed of 1000 ft/s has its speed reduced to 900 ft/s when it passes through a board. Determine how many boards the bullet will penetrate before it stops.
Derive an expression for the water level height h(t) as a function of time and determine the time it takes to completely drain within +/- 10%.
The coefficient of friction between the load and the flat-bed trailer shown is 0.4. Knowing that the speed of the rig is 45 mi/h, determine the shortest distance in which the rig can be brought to
A freight elevator moving upward with a constant velocity of 6ft/s passes a passenger elevator which is stopped. Four seconds later the passenger elevator starts upward with a constant acceleration
Write out the governing equations in cylindrical polar coordinate form and simplify for the above assumptions. Write down all applicable boundary conditions.
A 3 cubic meter tank contains propane at 0.5 MPa and 3°C. Gas leaks out of the tank. At the time of detection of leak, there is 22 kg of gas remaining in the tank at a temperature of 20°C.
Find the expressions for the velocities (Vupper and Vlower) at Q1 and Q3, respectively. Find an expression for the torque T about the x-axis required to keep the system rotating at angular velocity (o