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The cross sectional area of the nozzle of a hose pipe is 0.002 m^2. The velocity of water leaving the pipe is 1.8 m/s. How long will it take fill a 6 liter container?
The velocity selector in the figure is designed to allow charged particles with a speed of 4700 m/s to pass through undeflected. Find the magnitude of the required electric field
A block of mass 0.680 kg is pushed against a horizontal spring of negligible mass until the spring is compressed a distance x
A 100 arrow is shot perpendicularly from a bow whose effective spring constant is 500. If the bow is drawn 75 before shooting the arrow, to what height does arrow rise.
A 2500- Ferris wheel accelerates from rest to an angular speed of 0.21rad/sec in 14sec . Approximate the Ferris wheel as a circular disk with a radius of 30m. What is the net torque on tyhe wheel?
Two organ pipes, open at one end but closed at the other, are each 1.27m long. One is now lengthened by 2.00cm. Find the frequency of the beat they produce when playing together in their fundamental.
A Toyota Prius driving north at 61 and a VW Passat driving south at 42 are on the same road heading toward each other.
A battery with an emf of 12.0 V shows a terminal voltage of 10.9V when operating in a circuit with two lightbulbs, What is the battery's internal resistance
Suppose atmospheric pressure at Denver is 1.0135 × 105 N/m2 today. How high will the water column stand on the barometer tube
In a series circuit, r=21ohms L=25mH C=17uF V=150v and w=637rad/s, Calculate the peak current in the circuit
Two charged plates create a potential difference of 190 V. At a point halfway between the plates an electron is released from rest. What was the initial speed and direction of the proton
Explain why the theorem of relativity predicts that no massive particle can be accelerated unto or beyond the speed of light (hint: recall the work-energy theorem)
A uniform electric field of magnitude 395 N/C pointing in the positive x-direction acts on an electron, which is initially at rest. What is the work done by the field on the electron
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