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Chapter 22: Q. 30 - Excercises And Problems (page 625)
What are the strength and direction of an electric field that will balance the weight of a 1.0 g plastic sphere that has been charged to -3.0 nC?
The electric field that will balance the weight is
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What is the force on the charge in FIGURE P? Give your answer as a magnitude and an angle measured cw or ccw (specify which) from the axis.
Space explorers discover an asteroid that happens to have a positive charge of . They would like to place their spaceship in orbit around the asteroid. Interestingly, the solar wind has given their spaceship a charge of . What speed must their spaceship have to achieve a -diameter circular orbit?
What is the forceon thecharge at the bottom in FIGURE Give your answer in component form.
A plastic balloon that has been rubbed with wool will stick to a wall. Can you conclude that the wall is charged? If so, where does the charge come from? If not, why does the balloon stick?
Two positive point charges q and 4q are at x = 0 and x = L, respectively, and free to move. A third charge is placed so that the entire three-charge system is in static equilibrium. What are the magnitude, sign, and x-coordinate of the third charge?
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