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Water (? = 1000 kg/m3) is flowing smoothly through a pipe of diameter of 5.0 cm at a speed of 0.25 m/s. The pipe bends upward and rising 1.4 meters, it levels out and is narrowed to a diameter of 2.5 cm. The pressure in the lower segment of the pipe is 1.7 x 104N/m2.
a) Find the velocity of the water moving in the upper segment of the pipe.
b) Find the pressure in the upper segment of the pipe.
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A hydrogen atom has a single proton at its center and a single electron at a distance of approximately 0.0533 nm from the proton
What is the speed of each ball as it strikes the ground? How far apart are the balls 0.700 s after they are thrown.
A machine in the factory needs 38 V to operate. The power in the factory is different from that, what is the voltage of the electrical power system in the factory
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