Radiation from the sun falls on the frozen surface of a pond at a rate of 600 W m−2. The ice temperature is 0 °C.
a. a** Calculate how long it will take to melt a 1.0 cm thick layer of ice. (Take the density of ice to be 900 kg m−3 .)
b. b Suggest why the actual mass of ice that melts is less than your answer to a**.