Какое количество теплоты выделится при остывании льда массой 0, 5 кг от температуры - 1 до температуры - 5

Q=cm(t2-t1) подставь значения и найди

1.mozhete not rewrite the essay. 2.mozhete stay: in fact you have the time. 3. you can stay if you want. 4. you do not have to stay if you do not want. 5. you do not have to talk to him about it. 6. can you tell him about it. we can not repeat these rules: we know them. 7. it must be home now. 8. they maybe came to us yesterday, but we were not at home. 9. it can not be that he did not know this picture. 10. you do not have to go there: they are very bad people. 11.tebe should go there: they are waiting for you. 12. can i look at your picture? 13. it can not be that he was for so many years: he looks very young. 14. if my sister will not buy me a coffee, i have to go to the store itself. 15. i can not find my watch. i could not leave them at work. 16. i had a lot of books when i was preparing the report. 17. you can not immediately agree: think a few days. 18. can you show me your picture?

На тело, погружённое в воду, действует выталкивающая сила, большая, чем на тело, полностью погружённое в керосин, потому что плотность (а стало быть и вес в объёме тела) воды больше плотности керосина: f₁/f₂ = vρ₁g/vρ₂g = ρ₁/ρ₂ если ρ₁/ρ₂ > 1 то и f₁/f₂ > 1 следовательно f₁ > f₂ где v - объём тела g - ускорение силы тяжести ρ₁ - плотность воды ρ₂ - плотность керосина, причём известно, что ρ₁ > ρ₂ f₁ - выталкивающая сила, действующее на тело, полностью погружённое в воду f₂ - выталкивающая сила, действующее на тело, полностью погружённое в керосин