Consider first water and then sae 10w lubricating oil flowing at 40 degree c in a 6 mm diameter tube. if the maximum reynolds number for laminar flow is 2300, determine the maximum flow rate possible and the corresponding pressure gradient, dp/dx, for each fluid while maintaining laminar flow (h_2o: 7.10 times 10^-6 m%3/s, -145 n/m^3)

Consider a large isothermal enclosure that is maintained at a uniform temperature of 2000 k. calculate the emissive power of the radiation that emerges from a small aperture on the enclosure surface. what is the wavelength ? , below which 10% of the emission is concentrated? what is the wavelength ? 2 above which 10% of the emission is concentrated? determine the wavelength at which maximum spectral emissive power occurs. what is the irradiation incident on a small object placed inside the enclosure?