Redazione a cura di: A ntonio S abia, A ntonio Petrone, G ianluca S
Transcript
Redazione a cura di: A ntonio S abia, A ntonio Petrone, G ianluca S
1 !" # $ % " & ' ( ( ( (( ' ! " # ( # $ % " & &!) & &!) " " % & ( * ( % & ' % & ( ' % $ & + ( # " % & " 2 % , ) # * & &!) " ) & !" & & &!) " ) & ! & ' & + ,. -& , + ( , % ! - + % , ' , ( / + +.//, - .// ) 0 01 2 3 !& - & & 4561 1 /60 % 5.561 .2 .3 # 0 F t . .//60 7 % 456 t 3 1 % 1 C % # 3 t C t 8 /! 8 45! 9 .// : /! F 5.5 : 45! - t C = (t F − 32° F ) ⋅100°C t = C 180° F (t F − 32° F ) ⋅ 5 9 $ t F ⋅180° F = tC + 32° F 100°C t C ⋅ 9 + 32°F = tF 5 0% % 1 % 0 ! " $ ; < . + < , 0 * %B '7 = , 9:; 4< , > ( 8 * % 018 2 ? C > 0 852 4 .@ A0 % ! ( D8 ' ! ' 4 ; 0 > t C = T − 273,15°C T = t C + 273,15°C & = > > 6> ! & ; =! ! # " + ( , &!) " ) & !" ' " * ' % " 5 '' . " % ' " # = % " & &!) & !& % % & 6 % 7 %B = & % + , %B ! 0 7 & ! % % % / E 0 ∆ F 9 = /G /HE ∆ E& 9 / .G E ∆ ! " E 7 # % " & &!) $ &!3 & & # % " $) & " % I = # 0 F 9 F/ G F/ HJ ∆ F 9 F/ .GJ ∆ ! J 0 * % ; % & % % ! F/ 9 /H /H / ) F F 4 E5 ∆ 5 E4 ∆ 9 / .G E ∆ !H / .G E ∆ !H / .G E ∆ ! 9 F/ .G E ∆ !4 9 F/ .G4 E ∆ G4 E5 ∆ 4 4 E∆ F 5 G E4 ∆ 4 ! % 9 F/ .G4 E ∆ ! J94E ? % !& K95E 8 # % " & &!) #& % =$ # * %B & ./ ' & /60 L 60 L 60 ? 7 # % % % % .//60 # I 9 # % " & &!) #& % ; % % % J9 1 °K −1 273,15 0 % " $ " ( D: & % ! % # ' M & ! ; % % % 10 !" &) " % .! 1 % 42 60 7 & C tC 9 42 60 tF 9 C * 60 61 tF = 9° F tC + 32° F 5°C 0 tF = 5! ? .N N / 9° F ⋅ 37°C + 32° F = 98,6° F 5°C ; ..@ 61 7 0 & C t F 9 ..@ 61 tC 9 C * 61 60 11 tC = 5°C ⋅ (t F − 32° F ) 9° F ; tC = & 4! .@ 5°C ⋅ (115 − 32)° F = 46,1°C 9° F 5@ 60 . @ /2 O 4// 60 7 & C l1 9 . @ t1 9 5@ 60 l2 9 . @ /2 O t 2 9 4// 60 λ Ag 9 C = λ Ag ∆l = λ ⋅ l1 ⋅ ∆t - l1 ⋅ ∆t I λ Ag = ∆l l1 ⋅ ∆t 12 !& ∆l = l2 − l1 = (1,5078 − 1,5)m = 0,0078m = 7,8 ⋅ 10 −3 m ; λ Ag = 7,8 ⋅ 10 −3 m = 19 ⋅ 10 −6°C −1 1,5m ⋅ 275°C & 1,26 ⋅ 10 3 Kg ⋅ m −3 L! / 60 7 .@ / 60C - ρ1 = 1,26 ⋅ 103 Kg ⋅ m −3 t1 = 0°C t 2 = 150°C & ρ= m V = * t1 %B % m = ρ1V1 $ t2 13 m = ρ 2V2 7 ρ1V1 = ρ 2V2 ; ρ2 V2 ρ2 = ; V2 = V1 ⋅ (1 + K ⋅ ∆t ) ρ1V1 V2 % ρ2 = ρ1V1 V1 ⋅ (1 + K ⋅ ∆t ) $ ρ2 = ρ1 (1 + K ⋅ ∆t ) = ρ2 = 1,26 ⋅ 10 3 Kg ⋅ m −3 = 1,167 ⋅ 10 3 Kg ⋅ m −3 −6 −1 1 + 530 ⋅ 10 °C ⋅ 150°C 14 & % #& &!) " ) & ! 0$ ; = ; .2 /.8.2 L L ! % .// # .2 L / * # % .2 4/ I 4.3 3 /6 % .2 L L 1 % < ! .2 42 ( - .3 O 3 8 < I - .2 43 ! ? .2 .L 1 P $? P $= ; I % * Q % % R Q .O 5L 8 ? % < T % # * T % > $ F=? .N /2 ! ( S ? 1 ' # ( S 0 # ! ? T .O L O % ; % ( # I % I % % < % ? U VS % ! = < 8 % ' .O @ 5 P < < < < % % ! < # < # ; = < % " % 15 " ! 3 • ; • • Q 3 , 3 > ( U ' ' U ( ' % Q 5//5 ( Q = 0 W .N O 5 * 5/// 16