You have an ice cube, 1m on a side, frozen in the centre of which is a 20cm x 4cm metal statuette. It's removed from a cooler at -3 deg C, and placed on a wooden pedestal, 1m square in vertical cross section, in the middle of an air conditioned shopping mall at 17 deg C.
How long does the ice cube take to melt completely?
( Here's how far I've got... )
How long does the ice cube take to melt completely?
( Here's how far I've got... )