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You are in the purchasing division, which is considering buying a new car. The prices of the cars A and B are almost identical. Other options are also almost the same. However, the fuel consumption rates are presented in different unit systems. Car A consumes fuel at the rate of 28 miles/gal, while the fuel consumption rate for the car B is 9 km/L. Which car should you recommend the company to purchase, and why? Show your calculations.
determine the smallest allowable value of the coefficient of static friction between the collar and the rod if the collar is not to slide when a) a =15° b)a = 45°. Indicate for each case the direction of the impending motion.
where n = 3, and e· = 7.8 x 10-12/s, when s = 28 MPa. The bolt is initially tightened to a stress of 69 MPa. What is the stress in it after 1 year?
Carbon dioxide (CO2) gas enters a turbine operating at steady state at 50 bar, 500 K with a velocity of 50 m/s. The inlet area is 0.02 m2. At the exit, the pressure is 20 bar, the temperature is 440 K, and the velocity is 10 m/s.
as part of the new bicycle corps a solider is pedaling down the road at 25 kmh holding a missile launcher on his
Conical pendulum A particle is suspended from a fixed point by a light inextensible string of length a. Investigate ‘conical motions' of this pendulum in which the string maintains a constant angle α with the downward vertical.
Write the entire program that implements this real-time data-acquisition system. You are allowed to call the following functions (without showing the implementations of these functions).
Provision has to be made to disconnect the load if the battery voltage drops below 11 V. The available module has a rated voltage of 17.2 V at 25°C (15 V at 55°C) and 2.3 A at 1 kW/m2. The available battery has a rated capacity of 105 Ah at 12 V. ..
A regenerative steam power cycle has a closed feed water heater that heats 20 kg/s of water from 100°C, 20 MPa to 250°C, 20 MPa. The extraction steam from the turbine enters the heater at 4 MPa, 275°C, and leaves as saturated liquid. What is the req..
given the initial volume is 10 ft3 and a system expands to 20 ft3 and the system has an initial pressure of 14.7 psi
A heat engine rejects heat to the atmosphere. The temperature of the atmosphere is 80 F. Saturated liquid water enters the boiler at a rate of 1000 lbm/hour with pressure of 250 psia. The water exits the boiler as a saturated vapor at the same pressu..
a building for which the heat transfer rate through the walls and roof is 1350 btuh per degree temperature difference
a copper sheet of thickness 2l2mm has an initial temperature of ti118c. it is suddenly quenched in liquid water
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