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A100-watt light bulb illuminates a solar cell. the electricity from the solar cell operates a water pump that delivers 1 watt of power. what is the efficiency of the system?
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The diagram shows four locations in the electric field of a positive point charge m. at which location is the electric potential the greatest.
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Humidity is to blame for that muggy, steamy feeling you experience on some hot summer days. what gas in the atmosphere causes humidity? a) oxygen b) hydrogen c) nitrogen d) water vapor
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Nanotechnology is unique, because it is (blank) enough to show quantum mechanical features but still...
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