a Phy Q~~~help!!

let y be the the specific heat capacity of the metal block
(100-31.7)x3xY=(31.7-27)x5x4200
y=482(3s.f)

the specific heat capacity of the metal block is
482J kg^-1 C^-1

the heat capacity of the metal block is
3 x 482J kg^-1 C^-1=1450(3s.f.)

2006-10-30 21:36:48 補充：
100 - 鐵本來的溫度37.1-鐵放入水, 冷卻後的溫度(100-37) - 鐵前後的溫差

2006-10-30 21:40:48 補充：
如果以會考標淮(物理科)就算有excet value, 也要取3位有效數值(特別注明除外), 分數也不可.數學科則相反, 有分數寫分數, 不要寫3位有效數值.

2006-10-30 21:43:17 補充：
correction:3kg x 482J kg^-1 C^-1=1450J℃^-1(3s.f.)

specific heat capacity=3c(100-31.7)=5(4200)(31.7-27)
c=481.6983
c=482 jkg^-1 C^-1
heat capacity of the metal=481.6983895 x 3
C=1445.095168
C=1445 j^-1 C^-1