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A long metal cylinder (initially hollow and uncharged) is placed around a thin metal wire containing a linerar charge density lambda. Derive a formula for Electic field in the hollow portion beween the two conductors distand r from the center. (Conductors extend to infinity in both directions.)
an airplane undergoes the following displacements first it flies 87 km in a direction 40 east of north. next it flies
once upon a time a famous zoologist was hunting antelope for a zoo with a dart gun that fired darts with a range of 100
Assume that the cost of liquid nitrogen is $0.30 per liter, and that electric energy costs $0.10 per kWA·h. What is the resistance of a normal wire that costs as much in wasted electric energy as the cost of liquid nitrogen for the superconductor?
A 60 kg man is ice-skating due north with a velocity of 6.0 m/s when he collides with a 36 kg child. What is the direction of the child's velocity just before the collision
Two 9cm diameter charged disks face each other, 25cm apart. Both disks are charged to - 80 nC.
What is the electric field strength between the disks? A proton is shot from the negative disk toward the positive disk. What launch speed must the proton have
The drag on ball A in fluid Y (extremely expensive and rare) is to be estimated from tests run on ball B in air (fairly inexpensive fluid). Ball A has a diameter of 1 ft and we want to drag it during fluid Y at 80degreeF at 10 ft/s. Ball B has a diam..
A beam of light makes an angle of 27 o with the normal of a mirror made of 2.6- mm-thick glass silvered on the back. how far is the point at which the beam leaves the glass surface
A rocket rises vertically, from rest, with an acceleration of3.2 m/s2 until it runs outof fuel at an altitude of 1000 m. How long does it take to reach this point
the immediate cause of many deaths is ventricular fibrillation an uncoordinated quivering of the heart as opposed to
Coherent light that contains two wavelengths, 665 nm (red) and 575 nm (yellow), passesthrough two narrow slits separated by 0.300 mm, and theinterference pattern is observed on a screen 5.00 m from the slits.
The dielectric strength of air, E = 3.0×106 V/m, is the maximum field that air can withstand before it breaks down and becomes conducting. How much charge can be placed on a spherical conductor
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