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When charges qa, qb, and qc are placed respectively at the corners a, b, and c of a right triangle, the potential at the midpoint of the hypotenuse is 20.8 V. When the charge qa is removed, the potential at the midpoint becomes 11.3 V. When, instead, the charge qb is removed (qa and qc both in place), the potential at the midpoint becomes 16.7 V. What is the potential at the midpoint if only the charge qc is removed from the array of charges?
An Electromagnetic Car Alarm, Your latest invention is a car alarm that produces sound at a particularly annoying frequency of 3500Hz. What value of inductance should you choose for your car alarm circuit
t a certain location, Earth has a magnetic field of 0.60 10-4 T, pointing 75° below the horizontal in a north-south plane. If the current is directed horizontally toward the east, what are the magnitude and direction of the magnetic force on the wire
A certain pipe has resonant frequencies of 240 Hz, 400 Hz, and 560 Hz, with no other resonant frequencies between these values. What is the fundamental frequency of this pipe
An open railroad car of mass 2453 kilogram is coasting with an initial speed of 22 m/s on a frictionless, horizontal track. Find how much water has accumulated in the car
The compound gear to the right is located inside a truck, whose engine rotates the driving gear with a torque of 816 N·m. find the moments of inertia of both the large and small gears
A certain superconducting magnet in the form of a solenoid of length 0.80 m can generate a magnetic field of 14.0 T in its core, Find the number of turns in the solenoid.
A 20 kg piece of steel pipe that is 20 cm in diameter, 80 cm long, What is its angular velocity and its total kintetic energy
An RLC circuit has a reactance, due to its capacitance, of 11kΩ , a reactance, due to it inductance, of 3kΩ , and a resistance of 29kΩ . What is power factor of circuit?
A uniform-density 8 kg disk of radius 0.20 m is mounted on a nearly frictionless axle. Initially it is not spinning. A string is wrapped tightly around the disk, and you pull on the string with the constant force of 45 N through a distance of 0.7 ..
A bug of mass 2.6 g is sitting at the edge of a CD of radius 6.0 cm. what is the angular momentum of the bug
A solid cylinder carries a current that is uniform over its cross section. Where is the magnitude of the magnetic field the greatest ?
A vehicle drives over the top of a hill that has a radius of 52 meter. Calculate what maximum speed can the vehicle have without flying off the road at the top of the hill
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