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A Pelton turbine with a head m is considered. The pipe between the reservoir and the turbine is km long with a diameter m and a friction coefficient λ.015. The water jet leaving the nozzle has a diameter Dj cm and the runner diameter is .5 m. The efficiency of the turbine is η %. Assuming the losses in the nozzle of the form 0.04 V2/(2g), perfect velocity conditions between the water jet and the runner velocity, the water spreads at β° from the runner blades and neglecting the losses on the runner blades, determine:
A charge q at the origin is at the back corner of an imaginary cube of edge length a. What is the electric flux through the shaded region? Use direct integration
Assume you are observing a very distant galaxy observed to be receding faster than c (due to metric expansion of space-time), however you somehow were able to pull on a string tied to the galaxy, in that the galaxy approached you all in the while spa..
small object is placed to the left of a convex lens and on its optical axis. The object is 30 cm from the lens, which has a focal length of 14 cm. what will the image position be
Work of 2 Joules is done in stretching a spring from its natural length to 17 cm beyond its natural length. What is the force (in Newton's) that holds the spring stretched at the same distance (17 cm)
suppose a high voltage dc generator produces a potential difference of 75. kv across an air gap distance of 1.25 cm.
The electric flux through each face of a 5.00mx 5.00m x 5.00m cube is 130Nm^2/C. How much charge is inside the cube
An air conditioner connected to a 150 V rms ac line is equivalent to a 9.8 resistance and a 1.97 inductive reactance in series. What is the impedence of the air conditioner
A 150 kg block is pulled at a constant speed of 3.2 m/s across a horizontal floor by an applied force of 126 N directed 22° above the horizontal. What is the rate at which the force does work on the block
The three circuits below have driving Emf's with the same amplitude, 5 V. Each is driven at a fixed frequency which differs from the other two. The magnitudes of the inductive reactance in the left circuit, of the capacitive reactance in the cente..
Two runners approaching each other on a straight track have a consistent speed of 4.50m/s and 3.50m/s, respectively, when they are 100m apart. How long will it take for the runners to meet
A ring of radius 5 cm is in the yz plane with its center at the origin. The ring carries a uniform charge of 10 nC. The electric potential at x = 12 cm is approximately
an olympic weightlifter snatches 100 kg. In a snatch the barbell is moved from a stationary position on the floor to a stationary poition over the athlete's head. determine the weightlifter's average power output
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