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α= 0,000009/ C°
Α1= 1 M²
At= ?
At= A1 [1+( {0,000009/C°x 2} x 10) ]
= 1 x 1,00018 M²
= 1,00018 M²
nmr 13: Diketahui= Δt= 20 -18 = 2 C°
α= 0,000005/ C°
V1= 10 cm³
Vt= ?
Vt= V1 { 1 + [ (0,000005/ C° x 3) x 2] }
= 10 x 1,00003
= 10,0003 cm³
nmr 14 : Diketahui = Δt= 55-25= 30 C°
α= 0,000014/C°
V1= 2 cm x 3 cm = 6 cm²
Vt= ?
Vt= V1 { 1+ [ (0,000014/C° x 3) x 30 C° ] }
=6 cm² x 1,00126
= 600,756 cm²