A company just bought a new vehicle for $20,000. The service life of the vehicle is eight years. The company has to pay a $200 registration fee at the beginning of every year plus maintenance costs of $1,000 in the first year. The maintenance cost is expected to increase by $200 every year starting at the second year. At the end of the vehicle service life, it will be sold at 10% of its purchase price. Construct a cash flow diagram from the company's perspective

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?