October 2018 1 42 Report
Pelat besi bersuhu 20'C mempunyai ukuran 50 x20 cm. Jika pelat besi dipanaskan sampai suh 120'C, hitunglah tambahan luas dan luasnya setelah dipanaskan. ( koefisien muai panjang besi = 12 x 10^-6 C^-1 )

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