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Air flows through a well-insulated nozzle operating at steady state. At the inlet, the pressure is 5 bar, the temperature is 530 K, and the velocity is 120 m/s. At the exit, the pressure is 2.4 bar and the temperature is 460 K. Neglecting potential energy effects, determine the velocity at the nozzle exit in m/s. Assume the ideal gas model is applicable.
Wheel of radius r is driven by an arm OA. It is driving (without slip) wheel of a radius r2 which is fixed to a drum of radius r1. Load G is attached to the rope which winds on the drum. Calculate the speed of load G if the arm OA moves at n rev/m..
Refrigerant 134a enters a heat exchanger in a steady state refrigeration system as saturated vapor at 0 °F and exits at 20 °F with no change in pressure.
the 3000 lb car and the 4600 lb tow truck are stationary. the muddy surface on which the car rest exerts a negligible friction force on the car. what is the tension in the tow cable.
a base for a building column measures 18.0 in by 18.0 in on a side and 12.0 in high. compute the cross-sectional area
a certain industrial process requires a steady stream of saturated vapor steam at 200 kpa at the rate of 2 kgs. there
Consider a NACA 0009 airfoil that has a plain flap whose length is 0.2c and which is deflected 25. a. Calculate cl and cmc/4 When the geometric angle of attack is 4 degrees, what is the section lift coefficient? Where is the center of pressure?
the acceleration due to gravity at sea level is g 9.81 ms2 . what is the persons weight at sea level? the acceleration
A lap joint needs to be designed using 20-mm diameter bolts to carry a load of 120 kN on the connecting plates. If the shear stress in each rivet is not to exceed 90 MPa, determine the number of bolts needed.
405-N rightward force is use to drag a large box across the floor with a constant velocity of 0.678 ms-1. The coefficient of friction between the box and the floor is 0.795. Determine the mass of the box.
a coin of diameter 2.5 cm is placed concentrically at the bottom of a can 5 cm in diameter and 10 cm high. the coin is
a steam turbine produces power w 3000 hp from a mass flux m 20000 lbhr. the steam enters at temperature t1 810.78 k
What is the correct decimal notation for the number 1.345 x 10-1?
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