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The water level in a vertical glass tube 1.150 m long can be adjusted to any position in the tube. A tuning fork vibrating at 660.00 Hz is held just over the open top end of the tube. Assume a speed of sound of 343 m/s. What is the greatest depth of water for which there will be resonance in the air in the tube?
A 0.59-kg object connected to a light spring with a force constant of 24.0 N/m oscillates on a frictionless horizontal surface. Determine the maximum speed of the object
The loaded cab of an elevator has a mass of 3.0 x10^3 kg and moves 236 m up the shaft in 23s at constant speed. At what average speed does the force from the cable do work on the cab?
A battery with an emf of 12.0 V shows a terminal voltage of 11.4V when operating in a circuit with two lightbulbs, What is the battery's internal resistance
A 640-g hollow ball 21cm in diameter is suspended by a wire and is undergoing torsional oscillations at a frequency of 0.78 Hz
How high a tree would a 79.0 kg person have to climb to increase his gravitational potential energy relative to the ground by that amount.
A nonconducting solid sphere of radius R has a volume charge density that is proportional to the distance from the center. That is, ? = Ar for r R, Find the expressions for the electric field inside the sphere
Suppose that while moving into an apartment you move a refridgerator into place by sliding it across the floor. What is the least force you could exert on the fridge to move it
Over the course of a multi-stage 4080-km bicycle race, the front wheel of an athlete's bicycle makes 2.00 106 revolutions. How many revolutions would the wheel have made during the race
Two scales on a voltmeter measure voltages up to 21.0 and 30.7 V, respectively. Determine the coil resistance
A 330-N sphere 0.20 m in radius rolls without slipping 6.0 m down a ramp that is inclined at 34° with the horizontal
A 1.5 kg bicycle wheel with a radius of 0.27 m turns at a constant angular speed of 28 rad/s when a(n) 0.33 kg reflector is at a distance of 0.14 m from the axle. What is the angular speed of the wheel
A box slides across a frictionless floor with an initial speed v = 2.2 m/s. What is the shortest length of rough floor which will stop the box
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