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Two known charges, -10.9 µC and 46.3 µC, and an unknown charge arelocated on the x axis. Thecharge -10.9 µC is at the origin, and thecharge 46.3 µC isat x = 14.5 cm. The unknown charge is to be placedso that each charge is in equilibrium under the action of theelectric forces exerted by the other two charges. Find the required location and magnitude of the unknown charge
A skier of mass 64 kg is being towed up a slope ( µ = 15 ±) by a towrope at a constant speed of 3 m/s, what is the force (in N) that the towrope applies to the skier
A violinist is tuning her instrument to concert A (440 Hz). She plays the note while listening to an electronically generated tone of exactly that frequency and hears a beat of frequency 5.00 Hz, what was the frequency of her violin when she heard ..
An advertisement shows a 1239 kg car slowly pulling at constant speed a large passenger airplane to demonstrate the power of its newly-designed 89.7-hp (horsepower) engine, Calculate the force that opposes the motion
A horizontal magnetic field of 1.1×10?4 T is at an angle of 31 to the direction of the current in a straight, horizontal wire 80 cm long. If the wire carries a current of 18 A, what is the magnitude of the force on the wire
A proton takes 99.0?s to complete one orbit around a 14.5 m diameter cyclotron. What's the cyclotron's magnetic field
A 3.00 kg bucket of water is raised from a well by a rope. If the upward acceleration of the bucket is 2.20 m/s2, find out the force exerted by the rope on bucket of water.
A 61 kg speed skater with the velocity of 16 m/s comes into a curve of 18 m radius. How much friction should be exerted between skates and ice to negotiate the curve.
On wet pavement, the coefficient of kinetic friction may be only 0.25. How fast should you drive on wet pavement
A bullet of mass 0.01 kg moving horizontally strikes a block of wood of mass 1.5 kg which is suspended as a pendulum. What was the velocity of the bullet just before it struck the wooden block
A setup similar to the one shown in the figure below is often used in hospitals to support and apply a horizontal traction force to an injured leg. What is the traction force exerted to the right on the leg
The density of ice is 917 kg/m3, and the density of sea water is 1025 kg/m3. What is the weight of the heaviest bear that the ice can support without sinking completely beneath the water
You have two coils and want to determine their mutual inductance. You do a quick measurement, What is the mutual inductance
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