The parents of an infant bring the child to the emergency room 3 hours after they put the child to bed in apparent good health. the child is restless, the pulse is 140 beats/min, and lung sounds are diminished in all lung fields with intercostal retractions. what is the most likely cause of these symptoms?

Consider the growth of a 20-nm-diameter silicon nanowire onto a silicon wafer. the temperature of the wafer surface is maintained at 2400 k. assume the thermal conductivity of the silicon nanowire is 20 wm-1k-1 and all its surfaces including the tip are subjected to convection heat transfer with the coefficient h = 1×105 wm-2k-1 and t∞ = 8000 k. when the nanowire grows to l = 300 nm, what is the temperature of the nanowire tip (t (x =