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Consider conditions for which a fluid with a free stream velocity of V = 1 m/s flows over an evaporating or subliming surface with a characteristic length of L = 1 m, providing an average mass transfer convection coefficient of hm, = 10-2 m/s. Calculate the dimensionless parameters ShL, Re L, Sc, and Jm for the following combinations: airflow over water, airflow over naphthalene, and warm glycerol over ice. Assume a fluid temperature of 300 K and a pressure of 1 atm.
suppose that water at room temperature of 27degc is put into an ideal refrigerator that maintains an inside temperature
Newtons laws describing equations of motion for balance beam with cart (ball), Need to obtain a working mathematical model of the balance beam problem, preferably with a cart, not a ball
a hydraulic jump forms in a horizontal trapezoidal channel. the base width is 4m and the side slopes are 45 degrees.
a police car is traveling at a velocity of 15.0 ms due north when a car zooms by at a constant velocity of 37.0 ms due
a coil spring is stretched by two equal and opposite forces f120n. the wire diameter is 5 mm and the mean coil diameter
a thin metal disk of mass m2.00 x 10-3 kg and radius r2.20cm is attached at its center to a long fiber. when the disk
consider a reheat cycle with steam leaving the boiler and entering the turbine at 4 mpa and 400 c . after expanded in
a long stainless steel rod 18 cr 8 ni has a diameter of 6.4 mm. it is initially at a uniform temperature of 25 degc and
An air-standard dual cycle has a compression ratio of 18.2 and a cut off ratio of 1.31. The pressure ratio during constant volume heat addition process is 1.5. At the beginning of the compression, P1=80 kPa, T1 = 20°C at the beginning of the cycle. U..
Mud is stopped using a wall made from 1.2 m high x 0.25 m wide rectangular concrete blocks as shown in figure below. Blocks density is 2700 kg/m3, mud density is 1800 kg/m3, and friction coefficient between ground and concrete blocks is f = 0.3 . The..
a closed rigid container has a volume of 85 liters. the system contains steam at 2 bar and has a quality of 0.9.
Calculate the head provided by the pump and Calculate the brake power required if the pump efficiency is 75% (kW).
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