Biology, 12.10.2020 07:01 tennispro154
One of the rescue workers has a special flashlight; it has a crank, and the light shines when the crank is turned. Since the rescue
worker has never had to replace the batteries or plug in the flashlight, she thinks this flashlight works without an energy source.
How could you convince her that the flashlight cannot work without an energy source?
Answers: 1
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One of the rescue workers has a special flashlight; it has a crank, and the light shines when the cr...
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