A straight fin fabricated from 2024 aluminum alloy (k=185W/mK) has a base thickness of t=3mm and a length of L=18mm. Its base temperature is Tb=100C, and it is exposed to a fluid for which T=20C and h=50W/m2K. For the foregoing conditions and a fin of unit width, determine the fin heat rate, in W/ m, efficiency, and volume per unit width, in m2, for rectangular, triangular, and parabolic profiles. Rectangular: qf=W/mf=V=m2 Triangular: qffV===W/mm2 Parabolic: qf=W/mf=V=m2