Answer
$WCT$ $=$ $694$
Work Step by Step
Identify that v > 3, so use the second equation given in exercise 37. Plug in v = 48 and T = -10 into the equation to get:
$WCT$ $=$ $35.74$ + $0.6215$ $\times$$(-10)$ − $35.75$ $\times$ $-10$ $\times$ $48^{0.16}$ + $0.4275$ $\times$ $48^{0.16}$
$WCT$ $=$ $694$
