You are trying to find a way to bring electricity to a
remote village in order to run a water-purifying
device. A donor is willing to provide battery chargers
that connect to bicycles. Assuming the water-purifi-
cation device requires 18.6 kWoh daily, how many
bicycles would a village need if a person can average
100 W while riding a bicycle? Is this a useful way to
help the village? Evaluate your findings for strengths
and weaknesses. Summarize your comments and
suggestions in a letter to the donor.
Answers: 2
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