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The midship section of a launch is S = 4...

The midship section of a launch is S = `4 m^(2)`, the power of its engine is P = 300 h. p., the efficiency is `eta = 25 %` . What is the maximum speed of the launch? Put C = 0.5.

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The correct Answer is:
3.8 m/s
`v=root(3)(2peta//CSp)`
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