Fizika -10 III variant

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Sana	30.12.2021
Hajmi	131,36 Kb.
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Олимпиада 2019 тестлари 10 синф мактабларга 140170130931

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22. Tovush havodan suvga o‘tmoqda. Bunda uning chastotasi qanday o‘zgaradi Tovushning suvdagi tezligi 1480 m/s, havoda 340 m/s.
Pa bo`lgan kislorodning zichligini aniqlang (kg/m 3 )

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19. Gaz isitilganda, uning bosimi o`zgarmay dastlabki hajmi 30 % ga oshsa, u qanday ish bajaradi?

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20. Erkin tushayotgan1 kg massali jismning beshinchi sekundda og‘irlik kuchinig quvvatini toping( W).

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21. Suvli idishda muz parchasi suzib yuribdi. Uning ustidan kerosin quyilsa muzning botish chuqurligi qandayo`zgaradi?

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22. Tovush havodan suvga o‘tmoqda. Bunda uning chastotasi qanday o‘zgaradi? Tovushning suvdagi tezligi 1480 m/s, havoda 340 m/s.

Javob:_________________________________________________________

23. Temperaturasi 367⁰C va bosimi 8,31_·10⁵Pa bo`lgan kislorodning zichligini aniqlang (kg/m³)

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