A piston–cylinder device initially contains 0.8 m3 of nitrogen gas at 534 kPa and 22 °C. An electric heater within the device is turned on and is allowed to pass a current of 2 A for 8 min from a 107 -V source. Nitrogen expands at constant pressure, and a heat loss of 1,876 J occurs during the process. Determine the final temperature of nitrogen. Assume that Cp for nitrogen is equal to 1.039 KJ

Explain the difference laminar and turbulent flow. explain it with the shear stress and the velocity profiles.

Afour cylinder four-stroke in-line engine has a stroke of 160mm, connecting rod length of 150mm, a reciprocating mass of 3kg and its firing order is 1-3-4-2. the spacing between cylinders is 100mm. i. show that the engine is in balance with regard to the primary inertia forces and primary 3. a and secondary inertia couples. li determine the out of balance secondary inertia force ii. propose ways of balancing this out of balance force and discuss the challenges that will arise

The filament of an incandescent lamp has a temperature of 2000k. calculate the fraction of radiation emitted in the visible light band if the filament is approximated as blackbody