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A broad-crested weir is formed by cutting a rectangular notch in a 1.0-foot- thick concrete wall. The notch is 2.0 feet deep and 14.0 feet long. If an im- poundment rises up to the top of the wall, what is the discharge over the weir?
a piston-cylinder device initially contains 0.07 m3 of nitrogen gas at 130 kpa and 120 oc. the nitrogen is now expanded
the gravitational force exerted on a baseball is 2.12 n down. a pitcher throws the ball horizontally with velocity 12.5
determine the force in member of the loaded truss. assume that the four external reactions at and are equal in
The inside of the gun barrel is coated with Teflon,so the average friction forcewill be only 40 N during the 4.0 m he moves in the barrel. At what speed will he emerge from the end of the barrel,2.5 m above his initial rest position?
the turntable of a record player rotates initially at the rate 33 revmin and takes 14.07 s to come to rest. what is the
given an aerodynamic body you have learned in aerodynamics and flight mechanics how to apply the numerical source panel
How do human beings make economic decisions in engineering, business and personal contexts. What is entailed ineconomic decision making and the process
A general aviation aircraft has a propeller with 75 inches diameter that rotates at 2300 rpm (revolution per minute). Find the Mach number at the tip when the aircraft is standing on the ground ready to take off.
A simplex DC generator is driven by a diesel engine. The generator is lap wound, with 8 coils, 100 turns per coil and 2 poles and generates 200V at a speed of 1000rpm. Find the flux per pole required to generate this voltage.
a pure copper sphere with a diameter of 3.0 cm is initially at uniform temperature of 50 degc. it is suddenly exposed
the vertical component of the landing speed of a parachute is to be less than 20 fts. the total weight of the jumper
derive shear modulus g or bulk modulus k of isotropic materials in terms of youngs modulus e and poissons ratio v. use
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