Dobrý deň vedel by niekto vypočitať tieto úlohy ďakujem.
1.Predmet s mocnosťou 25 kilogramov sme zdvihli do výšky 15m za 10 minút. Aký výkon sme pri tom vykonali?
2. Aká je účinnosť čerpadla ktoré má výkon 3300W a príkon 3750W.
3. Predmet s hmotnosťou 25 kilogramov sme posunuli Po dráhe 35 metrov za 15 minút. Aký výkon sme vykonali?
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