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Two point charges, initially 2.0 cm apart, experience a 1.0-Nforce. If they are moved to a new separation of 8.0 cm, what is the electric force between them?
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Problem: An athlete performing a long jump leaves the ground at a 28.2 degree angle and lands 7.67 m away. A) What was the takeoff speed? B) If this speed were increased by just 5.0%, how much longer would the jump be?
In chemical changes, new substances are formed. Do the atoms involved actually change? If not, what has changed? How would you help your students visualize this?
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Question: A thin, horizontal, 20-cm-diameter copper plate is charged to 4.0 nC . Assume that the electrons are uniformly distributed on the surface a) What is the strength of the electric field 0.1 mm above the center of ...
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