What is fitness, according to the american college of sports medicine? a. fitness is the ability to carry out daily tasks without being overly tired. b. fit people do not have the energy to complete everyday work. c. fitness is the ability to perform only very light levels of physical activity. d. fitness is the ability to perform moderate levels of exercise only while you are young.

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 =