Answer: Q=42.45W
Step-by-step explanation:
Q=πA × ∆t/∆X, where;
Q= Rate of heat
π=coefficient of thermal conductivity
A= Area
∆t= change in temperature
∆x= change in thickness
Q= 0.023 × 1.7 × 33-(-5)/0.035
Q= 0.0391×38/0.035
Q = 1.4858/0.035
Q= 42.45w