Question: 8 - 2 3 A room 4 times 4 m square by 3 m high has one side wall maintained at 2 6 0

8-23 A room 4\times 4 m square by 3 m high has one side wall maintained at 260C; the floor
is maintained at 90C. The other four surfaces are perfectly insulated. Assume that
all surfaces are black. Calculate the net heat transfer between the hot wall and the
cool floor

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