A1.80 m wide and 5.0 m long plate moves through a stationary air of density 1.22 kg/m3 and viscosity 1.8x 104 poise at a velocity of 1.75 m/s parallel to its length. determine the drag force on one side of the plate by assuming (i) laminar flow (ii) turbulent flow

Abrake has a normal braking torque of 2.8 kip in and heat-dissipating cast-iron surfaces whose mass is 40 lbm. suppose a load is brought to rest in 8.0 s from an initial angular speed of 1600 rev/min using the normal braking torque; estimate the temperature rise of the heat dissipating surfaces.

The filament of an incandescent lamp has a temperature of 2000k. calculate the fraction of radiation emitted in the visible light band if the filament is approximated as blackbody

Slip occurs via two partial dislocations because of (a) the shorter path of the partial dislocation lines; (b) the lower energy state through partial dislocations; (c) the charge balance.