If the specific weight of water is 62.4 lb/ft3, the magnitude of force behind the walldue to submerged surface is () 5990.4 lb 11980.8 lb 188 lb/ft 1497 lb/ft

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?