From the center of the raft into the water at a depth o

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Uploaded: 16.02.2017
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Description

From the center of the raft into the water at a depth of 10 m is omitted light bulb. What are the minimum dimensions (length and width) should have a density that no ray of light bulbs could not pass through the surface of the water?

Additional information

Task 40943. Detailed solution with a short recording conditions, laws and formulas used in the decision, the withdrawal of the calculation formula and the answer.
If you have any questions about the decision to write. I try to help.

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