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A sphere of radius R consists of linear materials of dielectric constant k. Embedded in the sphere is a free-charge density p = kr, where k is constant and r is the distance from the sphere's center.
a. Find E inside the sphere.
b. Find E outside the sphere.
a uniform electric field of magnitude 430 nc pointing in the positive x-direction acts on an electron which is
q.nbspa trent had the strong belief against cigarette smoking as his dad died from lung cancer. trent has recently
A radio tower is broadcasting an isotropic radio wave with a power of 1000 watts. What is the radiation pressure on a reflecting surface 250 meters away from the tower?
Two charged plates create a potential difference of 190 V. At a point halfway between the plates an electron is released from rest. What was the initial speed and direction of the proton
One cubic meter of water flowing over Niagara Falls in New York drops 92.8 meters. how much heat energy would the water have
A uniform disk of radius 0.46 m is mounted on a frictionless, horizontal axis. A light cord wrapped around the disk supports a 0.58 kg object. When free from rest the object falls with a downward acceleration of 4.1 m/s squared.
However, as the drawing shows, a plane mirror reflects light from the bird into your camera. If x = 4.2 m and y = 3.9 m in the drawing, for what distance must you set focus of the camera lens in order to snap a sharp picture of the bird's image.
a family wishes to purchase a heat pump for their home. The get-it-cheap co. sells a heat pump that has an operating performance 38% of the coefficient of performance of an ideal Carnot heat pump. Compute the overall coefficient of performance for ..
A trolley bus whose mass is 104 kg takes 10 s toreach a speed of 8 m/s starting from rest. What is the average current drawn by the bus
A 750- car stopped at an intersection is rear-ended by a 1730- truck moving with a speed of 16.0 .If the car was in neutral and its brakes were off, Find the final speed of the car
A 0.60 kg stone attached to a string is whirled in a horizontal circle of radius 43 cm as in the figure below. The string makes an angle of 35° with the vertical. Find the speed of the stone
A telephone cord is 9.00 m long andhas a mass of 0.500 kg. A transversewave pulse is produced by plucking one end of the taut cord. What is the tension in the cord
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