Determine if the air flow is laminar or turbulent
Air at 7 kPa and 35 °C flows over a flat plate at 7.5 m/s. The plate is 30 cm square and is maintained at 65 °C.
a. Determine if the air flow is laminar or turbulent. Justify your answer.
b. Estimate the heat lost from the plate in W.
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A skater is spinning with his arms outstretched. He has a 2-lb weight in each hand. In an attempt to change his angular velocity he lets go of both weights. Does he succeed in changing his angular velocity? If yes, how does his angular velocity ch
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Air at 7 kPa and 35 °C flows over a flat plate at 7.5 m/s. The plate is 30 cm square and is maintained at 65 °C. Determine if the air flow is laminar or turbulent. Justify your answer.
Calculate the convective heat transfer coefficient. Determine the heat transfer in W for an isothermal plate maintained at 57 °C.
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A rocket is launched and attains a spped of 7900 m/s when 35000 m abovve the surface of the earth. If the engines then shut down , how much higher will the rocket rise before beginning its fall back toward the earth..?
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