Estimate the maximum range and the maximum endurance of a propeller-driven airplane with the following characteristics: empty weight 4000 lb, fuel weight 400 lb, specific fuel consumption 0.4 lb of fuel per horsepower per hour, propeller efficiency 0.8, zero-lift drag coefficient 0.03, wing area 200 ft2 , aspect ratio 7, and Oswald efficiency factor 0.85. Assume the standard sea-level conditions. Note: you may want to use some results given in section 6.14 of the textbook.

Heat is added to a piston-cylinder device filled with 2 kg of air to raise its temperature 400 c from an initial temperature of t1 27 cand pressure of pi 1 mpa. the process is isobaric process. find a)-the final pressure p2 b)-the heat transfer to the air.

Apump is used to circulate hot water in a home heating system. water enters the well-insulated pump operating at steady state at a rate of 0.42 gal/min. the inlet pressure and temperature are 14.7 lbf/in.2, and 180°f, respectively; at the exit the pressure is 60 lbf/in.2 the pump requires 1/15 hp of power input. water can be modeled as an incompressible substance with constant density of 60.58 lb/ft3 and constant specific heat of 1 btu/lb or. neglecting kinetic and potential energy effects, determine the temperature change, in °r, as the water flows through the pump.

The thermal expansion or contraction of a given metal is a function of the f a)-density b)-initial temperature c)- temperature difference d)- linear coefficient of thermal expansion e)- final temperature f)- original length