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You are in charge of the construction site of a new dam. Extremely heavy rainfall starts and Bureau of Meteorology hydrologists tell you that beginning at about 8 AM, 2 GL per hour (2 x 10^6 meters^3 per hour) will flow into the dam. The lake behind the dam has approximately vertical walls and a surface area of 1 x 10^6 meters^. At 8 AM, you measure the water level behind the dam: it is 6.5 m below the top of the incomplete dam, and if it overflows, it could sweep away construction equipment on the top. Water from the lake is draining freely and steadily through the dam’s diversion tunnel. The short, horizontal diversion tunnel is 3 m in diameter, has its centerline 40 m below the top of the incomplete dam, and exits to atmospheric pressure. How much time have you got to move equipment from the top before it overflows?[Hint: First, draw a diagram, then derive a formula for the time the water takes to reach a given height, then put in the numbers.]
A 818 kg car is going 28 m/s and the driver has to slam on his brakes to prevent an accident. find the change in temperature of the brake pads and rotors
The wave function for a quantum particle is given by ψ(x)= Ax between x = 0 and x = 1.00, and ψ(x) = 0 elsewhere. Find the value of the normalization constant A
A 1.80Kg brick is sliding next to on a rough horizontal surface at 13.5m/s .If the brick stops in 4.80, how much mechanical energy is lost.
Two circuits contain an emf produced by a moving metal rod, like that shown. The speed of the rod is the same in each circuit, other than the bulb in circuit 1 has one-half the resistance of the bulb in circuit 2.
The old LP vinyl records commonly rotated at 33.33 revolutions per minute. Find the period of revolution for the record
Three equal point charges, each with charge 1.15 , are placed at the vertices of an equilateral triangle whose sides are of length 0.600 . What is an electric potential energy of the system? (Take as zero the potential energy of the three charges ..
Consider three non-interacting particles each of which has three accessible quantum states. Determine the possible states for this system if the particles are fermions
A 0.20 kg billiard ball is thrown at a 45 degree angle upwards from the edge of a 12.192 meters tall building. What was the speed of the ball when it was launched
A puck slides across a smooth, level tabletop at height H at a constant speed vo. What is the algebraic relationship between the distances x and H
35MW of power at 45kV (rms) arrives at a town from a generator via 3.4? transmission lines. Calculate the fraction of the power generated that is wasted in the lines
An RC circuit has a resistance of 20 mega ohms and time constant of 100 sec. If the capacitor charged to a voltage of 10v, what is the charge in coulombs on its plate
A spaceship travels past an observer at a speed of 0.6c. What time would the observer record for the same event
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