Question

The temperature at the point (x, y, z) in a substance with conductivity K = 7.5...

The temperature at the point (x, y, z) in a substance with conductivity

K = 7.5 is u(x, y, z) = 4y2 + 4z2.

Find the rate of heat flow inward across the cylindrical surface

y2 + z2 = 3, 0 ≤ x ≤ 2.

Last attempt remaining. Please solve carefully.

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