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Individuals who live below the poverty line get seriously ill more often than those who do not what could be the hidden variable in this situation?
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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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A 0.050 kg bullet strikes a 5.0 kg wooden block with a velocity of 909 m/s and embeds itself in the...
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