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| a type of plastic used in photographic film and overhead transparencies |
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| Action-at-a-distance forces |
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Definition
| forces that can have an effect on an object without touching it |
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| optical design that uses an adaptable mirror or liquid crystal array to reduce image distortion, such as that caused by the atmosphere |
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| Colimn 1 of the periodic table; include the metallic elements lithium, sodium, potassium, rubidium,cesium, and francium |
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| unit for measuring electric current; very small currents measured in milliamperes (mA); 1 A= 1000 mA |
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