Air at a static temperature of 70?F and a static pressure of 0.1 psia flows at zero angle of attack over a thin electrically heated flat plate at a velocity of 200 fps. If the plate is 4 in long in the direction of flow and 24 in. in the direction normal to the flow, determine the rate of electrical heat dissipation necessary to maintain the plate at an average temperature of 130?F.GIVENHigh speed air flow over a heated flat plateAir static temperature (TA) = 70?FAir static pressure (P) = 0.1 psiaAir velocity (U??) = 800 ft/sPlate length (L) = 4 in = 1/3 ftPlate width (w) = 24 in = 2 ftAverage plate temperature (Ts) = 130?FASSUMPTIONSSteady stateAir behaves as an ideal gasAir flows on one side of the plate onlyRadiative heat transfer isnegligible

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Air U.-800 f/s T.= 70°F T.- 130°F T.-130°F L= 1/3 ft