Air (1 atm, 5°c) with free stream velocity of 4 m/s flowing in parallel to a stationary thin 1 m × 1 m flat plate over the top and bottom surfaces. the flat plate has a uniform surface temperature of 35°c. if the friction force asserted on the flat plate is 0.1 n, determine the rate of heat transfer from the plate.\

When you see distant streetlights through smog, they look dimmer and redder than they do normally. but when you see the same streetlights through fog or falling snow, they look dimmer but not redder. use your knowledge of the interstellar medium to discuss the relative sizes of the particles in smog, fog, and snowstorms compared to the wavelength of light.