A new machine can be purchased today for $400,000. The annual revenue from the machine is calculated to be $77,000, and the equipment will last 10 years. Expect the maintenance and operation costs to be $4,000 a year and to increase $700 per year. The salvage value of the machine will be $30,000.Required:a. Draw a cash flow diagram for this project. b. What is the rate of return for this machine?

Apiston-cylinder with a volume of 0.25 m3 holds 1 kg of air (r 0.287 k/kgk) at a temperature of 100 c. heat transfer to the cylinder causes an isothermal expansion of the piston until the volume triples. how much heat is added to the piston-cylinder?

On a average work day more than work place firs are reorted

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?