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2alshawe201
07.12.2020 •
Physics
1.Zamień jednostki:
1013 hPa = … Pa
101 hPa = …MPa
250 Pa = … hPa
35 hPa = … kPa
2,45 Mpa = … Pa
2.Betonowa płyta o powierzchni 5m2 ma ciężar 30000N. Jakie ciśnienie wywiera na podłoże, na którym leży?
3.Na podłodze stoi paczka o masie 20 kg. Wywiera ona na podłogę ciśnienie 500Pa. Oblicz powierzchnię podstawy paczki.
proszę o pomoc daję naj!
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Ответ:
b. The temperature rises. (ice turns to water at 33 degrees and water turns to vapor at 212 degrees)