3 62 



On the PROGRESS of HEAT 



ii. Other things remaining as before, if we now make 

 r = io, then hzz — 44.444 -f- - 



<M-*'m- 



^ * 



X 



A 



20 



477°-556 



3° 



303 -55 6 



40 



226.556 



5° ' 



164.556 



60 



145 -556 



70 



104.556 



80 



85 .056 



90 



64 -55 6 



100 



60 .000 



12. If R = 10, r = 1, H = 10000, and T = 60, 



7 , 11044.44 

 h = — 1044.44 + t^ 



Values of x 



1 

 2 



3 



4 



5 

 6 



7 

 8 



9 

 10 



Values of b 



I0000°.00 



4477 -7° 

 2637 .04 



1716.67 



1164.44 



796.30 



533-33 

 346.16 



182 .72 



60 .00 



13. Thi; 



