1.
One end of a 2.35m2.35\,\text{m} long aluminium rod of radius 2.0cm2.0\,\text{cm} (K=235Wm1K1K = 235\,\text{W\,m}^{-1}\text{K}^{-1}) is held at 20C20\,^\circ\text{C}. The other end is in contact with a block of ice at its melting point. The rate in kgs1\text{kg\,s}^{-1} at which ice melts is [Take latent heat of fusion for ice as 3.36×105Jkg13.36\times10^5\,\text{J\,kg}^{-1}]