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Ответ дан
Dedagenn
G2 = G1*D2/D1; H2 = H1*(D2/D1)²; N2 = N1*(D2/D1)³; ns2 = ns1D1/D2 ,
уменьшение D2<D1
7. подача уменьшится на 10%
8. напор уменьшится на 19%
9. мощность уменьшится на 27.1%
10. момент уменьшится на 19%
11. коэфф. быстроходности уменьшится на 10%

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