14-05-2015
Mathematics

contestada

Solve the following equation for r2: Q = 2sL(T2-T1)/ln(r2/r1)
when: Q=1,500,000, s=30, T2=275, T1=22, L=10, r1=6.

Respuesta :

hunaifirst hunaifirst

14-05-2015

Q=2*s*L(T2-T1)/ (R2/R1)
1500000=2*30*10(275-22)/(R2/6)
1500000=600(253)/(R2/6)
1500000R2=600*253*6
1500000R2=910800
R2=910800/1500000
R2=0.6072.

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