Question and answer
How does electricity flow through copper wire? : A. copper atoms detach and slide along the wire, B. Electrons move from one atom of copper to another, C. Copper atoms create energy waves that
travel along the wire, D. electrons from one atom transfer vibrations to another atom
Electrons move from one atom of copper to another.
Expert answered|Oryptic|Points 80|
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Asked 7/9/2011 12:29:27 AM
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23. Your roommate’s car has a pair of “fuzzy dice” hanging by a string from its rearview mirror. Yes, they’re tacky but you don’t have the heart to say anything. Anyway, these dice do a nifty job of indicating how the car is moving. For example, if the dice swing backward while the car is on a level road, you know that the car is A) accelerating backward. B) accelerating forward. C) traveling backward at a steady pace. D) traveling forward at a steady pace.
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Asked 7/5/2011 2:18:33 AM
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What is the purpose of using a screw? A. to reduce force over a distance B. to open a door C. to hold a door in place D. to close a door
Weegy: The correct answer is A. to reduce force over a distance. [smile] (More)
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Asked 7/7/2011 3:33:03 AM
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