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A thick, conducting, spherical shell of inner radius a = 0.7 centimeter and outer radius b = 1.4 centimeter is uncharged. The shell surrounds a point charge +Q = 5.30 mC at its center. Find what is the electric field in the region 0< r< a, say r = 0.350 centimeter?
(V/m)
A proton initially at rest is accelerated by a uniform electric field. The proton moves 6.48 cm in 1.20 10-6 s. Find the voltage drop through which the proton moves
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A pipe open only at one end has a fundamental frequency of 256 Hz. A second pipe, initially identical to the first pipe, is shortened by cutting off a portion of the open end.
Two 10 cm-diameter charged thin rings face each other, 20 cm apart. The left ring is charged to 20 nC and the right ring is charged to +20 nC. What is the electric field.
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In the Challenger Deep of the Marianas Trench, the depth of seawater is 10.9 km and the pressure is 1.16 x 10^8Pa (about 1.15 x 10^3 atm). What is the density of seawater at this depth
What is the greatest distance foot of the ladder can be placed from the base of the wall without the ladder immediately slipping.
A 200g ball on a 70-cm-long string is swung in a vertical circle about a point 200 cm above the floor. What was the tension in the string an instant before it broke
A projector lens needed to form an image on a screen 10 times the size of its corresponding object. What is the required focal length of the lens
What is the difference between an electric insulator and an electric conductor? Give examples of materials that are electric insulators
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