Computer chip (5 mm squared) is operated at 85c and is cooled by forced air at 27c, which offers a heat transfer coefficient of 200 w/m2-k. with emissivity of the chip surface being 0.9 and the constant temperature of the computer case enclosing the chip being 15c, determine (a) the rate of heat transfer from the chip by convection (qconvection), (b) the rate of heat transfer from the computer chip by radiation (qradiation), and (c) the ratio qradiation/qconvection