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Air at a pressure of 200 kPa and free stream temperature of 27 °C flows over a square plate at a velocity of 30 m/s. At the edge of the plate, Re = 106 . a. Calculate the convective heat transfer coefficient. b. Determine the heat transfer in W for an isothermal plate maintained at 57 °C.
a particle moves along a straight line with a velocity v 200smms where s is in millimeters. determine the acceleration
calculate the energy of vacancy formation in silver given that the equilibrium number of vacancies at 800 degc 1073k is
helium gas expands from 125 kpa 350k and 0.25m3 to 100 kpa in a polytropic process with n 1.667 or 53. is the work
an ideal otto cycle has a compression ratio of 8. at the beginning of the compression process air is at 100kpa and
the spring is unstretched when x0. if the body moves from the initial position x1100mm to the final position x2200mm a
draw a block diagram for a closed-loop room temperature control system consisting of a space heater with a single
determine the component of vector a in the direction of vector b. verify that the computed unit vector has a magnitude
a carnot engine produces 30 hp while operating with an efficiency of 32. if the engin rejects heat to the atmosphere at
to make ice at 1 atm 101.3kpa water at 25 degrees c is cooled to 0 degrees c and then frozen to ice 0 degrees c by
a rankine cycle is to drive an electric generator to produce 600 mw of electricity. the generator is 95 efficient.the
natural gas is flowing in a 20 inch sch 40 carbon steel pipeline that is 300 miles long. there is a gas compressor at
pushing a book against the wall.you are holding a book against a vertical wall by pushing upwards with your hand. the
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