Q8Data for a plywood sample is as follows: Tig = 375°C kpc = 0.54(kW/m²K)² s Net Heat flux 38kW Ambient temperature= 32°C. Calculate the upward flame speed when the flame extends from the pyrolysis front by 360mm. State any assumptions. Calculate the downward flame spread if now Ts = 18°C and then 400°C. (flame spread properties from table in notes).State any assumptions and limitations.