Consider a wall that consists of two layers, A and B, with the following values: k subscript A equals 0.8 space w divided by m to the power of o c comma space L subscript A equals 8 space c m comma space k subscript B equals 0.2 space w divided by m to the power of o c comma space a n d space space L subscript B equals 5 space c m. If the temperature drop across the wall is 8 to the power of o c , the rate of heat transfer through the wall per unit area of the wall in w divided by m squared is

Two technicians are discussing the intake air temperature (iat) sensor. technician a says that the computer uses the iat sensor as a backup to the engine coolant temperature (ect) sensor. technician b says that the powertrain control module (pcm) will subtract the calculated amount of fuel if the air measures hot. who is correct

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?

Aquick transition of the operating speed of a shaft from its critical speed will whirl amplitude. (a) increase (b) limit (c) not affect (d) zero