Engine oil at 10◦c flows across a 15-cm-square plate upon which is imposed a constant heat flux of 10 kw/m2. determine (a) the average temperature difference, (b) the temperature difference at the trailing edge, and (c) the average heat-transfer coefficient. use the churchill relation [equation (5-51)]. u∞ =0.5 m/s.

Aplane takes off from an airport and flies to town a, located d1 = 215 km from the airport in the direction 20.0° north of east. the plane then flies to town b, located d2 = 230 km at 30.0° west of north from town a. use graphical methods to determine the distance and direction from town b to the airport. (enter the distance in km and the direction in degrees south of west.)

Around faucet handle is part of a(n) a. lever b. screw c. inclined plane d. wheel and axle

The plum pudding model of the atom states that ?