1. The convective heat-transfer coefficient between a large brick wall and air at 100 F is expressed as h  0:44 (T ) 1/3 Btu/h ft 2 F. If the wall is initially at a uniform temperature of 1000 F,...

1. The convective heat-transfer coefficient between a large brick wall and air at 100F is expressed as h
 0:44 (T
)
^1/3
Btu/h ft²
F. If the wall is initially at a uniform temperature of 1000F, estimate the temperature of the surface after 1, 6, and 24 h.

2. Air at 65F is blown against a pane of glass 1/8 in. thick. If the glass is initially at 30F, and has frost on the outside, estimate the length of time required for the frost to begin to melt