A female freestyle ice skater, weighing 100 lbf, glides on one skate at speed V = 20 ft/s. Her weight is supported by a thin
lm of liquid water melted from the ice by the pressure of the skate blade. Assume the blade is L =11.5 in. long and w =
0.125 in. wide, and that the water lm is h = 0.0000575 in. thick. Estimate the deceleration of the skater that results from
viscous shear in the water lm, if end effects are neglecte

Ahot wire operates at a temperature of 200°c while the air temperature is 20°c. the hot wire element is a tungsten wire of 5 um diameter and 2 mm in length. plot using excel current, heat transfer and heat generated by the wire for air velocity varying from 1-10 m/s in steps of lm/s? matlab the sensor voltage output, resistance, or assume nu 0.989 re033pr13 take air properties at tr (200°c20°c)/2 = 110°c properties of tungsten: c 0.13 kj/kg.k 3 p 19250 kg/m k (thermal conductivity) = 174 w/m.k