sebuah pelat logam terbuat dari bahan perunggu

by

Daftar Isi

Pembahasan

straight alpha equals 1 comma 8 cross times 10 to the power of negative 5 end exponent divided by to the power of 0 straight C straight A subscript 0 equals straight p subscript 0 cross times straight l subscript 0 equals left parenthesis 10 cross times 15 right parenthesis equals 150 space cm squared increment straight T equals 80 degree minus 0 degree equals 80 degree straight C

Maka pertambahan luas pelat adalah :

increment straight A equals straight A subscript 0 cross times straight beta cross times increment straight T increment straight A equals straight A subscript 0 cross times 2 straight alpha cross times increment straight T increment straight A equals left parenthesis 150 right parenthesis cross times left parenthesis 3 comma 6 cross times 10 to the power of negative 5 end exponent right parenthesis left parenthesis 80 right parenthesis increment straight A equals 0 comma 432 space cm squared increment straight A equals 4 comma 32 cross times 10 to the power of negative 1 end exponent space cm squared

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