Redo problem 9 but with a rectangular aperture of 1cm by 2cm instead. Assuming that there is 1,550 W of sunlight per square meter incident on the surface of the earth and using 550nm as the...

Redo problem 9 but with a rectangular aperture of 1cm by 2cm instead.

Assuming that there is 1,550 W of sunlight per square meter

incident on the surface of the earth and using 550nm as the wavelength of the light (although we know it is spread across the visible

spectrum from 400 to 700nm) use Example 1.2 and Equation 1.39

to analyze Archimedes’ “Death Ray.” Assume the optical components are 80% reflective and that the ships of the Roman fleet were

2km away. Assume the specific heat of spruce and pine is about

c ~ 2,300J/kg °C. You will also need to recall the equation for heat

is Q = mcΔT. Also assume the ignition temperature of wood is

about 200°C.