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A 4-cm-diameter cast iron pipe connects two reservoirs with the surface of one reservoir 10 m below the surface of the other. There are two standard screwed elbows and one wide-open angle valve in the 50-m-long pipe. Assuming a square-edged entrance, estimate the flow rate between the reservoirs. Assume a temperature of 20-C.
A metal slug is dropped from a height of 1/20 RM above the moon's surface. Find the speed with which the slug strikes the moon's surface
To stretch a certain spring by 3.00 from its equilibrium position requires 9.50 of work. What was the maximum force required to stretch it
At rest, a car's horn sounds the note A (440 Hz). The horn is sounded while the car is moving down the street. A bicyclist moving in the similar direction with one third the car's speed hears a frequency of 415 Hz. What is the speed of the car? Is th..
A solenoid of length 4.0 cm and diameter 0.93 cm is wound with 165 turns per cm. What is the induced emf in one of the windings
A solid sphere of radius 40 centimeter has a total positive charge of 19.8 µC uniformly distributed throughout its volume. Obtain the magnitude of the electric field
A beam of light is incident on a plane mirror at an angle of 32 degrees relative to the normal. What is the angle between the reflected rays and the surface of the mirror?
In a quarter-mile drag race, two cars start simultaneously from rest, and every accelerates at a constant rate until it either reaches its maximum speed or crosses the finish line. Car A has an acceleration of 11.6 m/s 2 and a maximum speed of 101 m..
Calculate the magnitude of the force the right hand side of the channel exerts on the ball. Use g=9.8m/s^2.
A uniform metal rod, with a mass of 3.3 and a length of 1.4 , is attached to a wall by a hinge at its base. A horizontal wire bolted to the wall 0.59 above base of the rod holds the rod at an angle of 25 above the horizontal. The wire is attached ..
an elevator moves downward in a tall building at a constant speed of 4.95 ms. exactly 5.50 s after the top of the
A 920 kg sports car collides into the rear end of a 2300 kg SUV stopped at a red light. The bumpers lock, the brakes are locked, and the two cars skid forward 2.6 m before stopping. The police officer, knowing that the coefficient of kinetic frict..
The compressor of an air conditioner draws an electric current of 20.7 A when it starts up. how much electric charge passes through the circuit
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