Mencione tres materiales de uso comun en la aeronautica. De estos materiales, busque al menos tres de las siguientes propiedades:
• Modulo de elasticidad
• resistencia ultima a la tension
• resistencia a la corrosion
• dureza a la fractura
• peso
Determine cual de estos materiales seria mas apropiado para una parte de su seleccion dentro
de una aeronave y por que

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?