Along plastic rod of 20-mm diameter (k = 0.3 w/m ⋅ k and rhocp = 1040 kj/m3 ⋅ k) is uniformly heated in an oven as preparation for a pressing operation. for best results, the temperature in the rod should not be less than 200°c. to what uniform temperature should the rod be heated in the oven if, for the worst case, the rod sits on a conveyor for 3 min while exposed to convection cooling with ambient air at 25°c and with a convection coefficient of 10 w/m2 ⋅ k? a further condition for good results is a maximum–minimum temperature difference of less than 10°c. is this condition satisfied? if not, what could you do to satisfy it?