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Two circular current loops are located at z = +R/2 and z = -R/2, parallel to the xy-plane and centered at the z-axis. Each loop has current i and radius R.
(A) Derive a formula for the magnetic field at an arbitrary point on the z-axis. Note by symmetry that B(x) = Bz(z) k.
(B) Calculate the ratio Bz(R)/Bz(0).
A sled of mass m is given a kick on a frozen pond. The kick imparts to it an initial speed of vi = 2.50 m/s. Use energy considerations to find the distance the sled moves before it stops
Four identical springs are used as part of a car's suspension system, one on each wheel. What will be the frequency at which the car will bounce
A gymnast of mass 69.0 kg hangs from a vertical rope attached to the ceiling. You can ignore the weight of the rope and assume that the rope does not stretch. Use the value 9.81 for the acceleration of gravity.
An electron moving parallel to the x axis has an initial speed of 3.70*10^6m/s at the origin. Its speed is reduced to 1.40*10^5m/s at the point x=2cm. Which point has higher potential energy
sometimes a person cannot clearly see objects close up or far away. to correct this type of vision bifocals are often
You are standing between two plane mirrors that are parallel to each other. How many total images of you would there be formed by this arrangement
A 3.83 ohm resistor, a 7.53 ohm resistor, and a 9.02 ohm resistor are connected in series with a 15.0 V battery. What is the current in each resistor
One swimmer in a relay race has a 0.49 s lead and is swimming at a constant speed of 3.97 m/s. the swimmer has 57.7 m to swim before reaching the end of the pool
Two gliders are tied together by a string after they are connected together by a compressed spring on an airtrack. find the mass of Glider B
A ski starts from rest and slides down a 29° incline 100 mlong. Use energy methods. If the coefficient of friction is 0.09, what is the ski's speed at the base of the incline
A 7.00 kg bowling ball moves at 2.30m/s. How fast must a 2.60g Ping-Pong ball move so that the two balls have the same kinetic energy.
You are pulling a crate across the floor. The block has a mass of 65.0 kg. You exert a horizontal force of 140. find direction of the acceleration of the crate
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