Helium at 33 K fl ows past a warmed isothermal fl at plate at a velocity of 0.8 m/s. Th e drag exerted is measured to be 2.6 × 10−4 N. Estimate the plate temperature and the local (at plate end) and...

Helium at 33 K fl ows past a warmed isothermal fl at plate at a velocity of 0.8 m/s. Th e drag exerted is measured to be 2.6 × 10−4 N. Estimate the plate temperature and the local (at plate end) and average convection coeffi cients. Th e plate is 20 cm wide and 2 m long.