Q1. A cube of ice is taken from the freezer at -8.6°C and placed in a 102 g aluminium calorimeter filled with 286 g of water at room temperature of 20°C. The last situation is observed to be all water at 19°C. What was the mass of ice cube?
Q2. A particle of charge +1.5 nC is placed at a corner of a Gaussian cube with sides 12.0cm. What is an electric flux through the cube?