Author Question: A piece of wood 350 mm 350 mm and 15 mm thick conducts heat through its thickness under steady ... (Read 89 times)

Deast7027 · **on:** Jul 27, 2018

A piece of wood 350 mm 350 mm and 15 mm thick conducts heat through its thickness under steady state conditions. The rate of heat flow is measured to be 14.0 watts when the temperature difference is 28 C.

Determine the coefficient of thermal conductivity for this wood A) 9.2 10-4 J/(msC)
B) 270 J/(msC)
C) 16 J/(msC)
D) 0.061 J/(msC)
E) 33 J/(msC)

Question 2

Most of the detailed information about the planets in our solar system comes from

A) telescopic observations from Earth
B) robotic spacecraft
C) human visits
D) meteorites