The rectangular cross section of a long bar $($k$=5$W$//$mC$)$ is shown in the Figure below. The bar has convection on the top surface, a temperature boundary condition on the

right side, radiation on the bottom, and is insulated on the left side. No need to solve by hand. SHOW ONLY THE MATLAB CODE.

$($a$)$ What are the steady$-$state nodal temperatures? Save the temperature at each node in variablename "Node$1"$ for T$(1),$ "Node$2"$ for T$(2),$ etc.

$($b$)$ What is the rate of heat flow to the fluid from the top surface per meter length of the bar? Save the value in varaiablename "qtop"

$($c$)$ What is the rate of heat flow to the surroundings from the bottom surface per meter length of the bar? Save the value in variablename "qbot"