Javob:_____________________________________________________
19. Gaz isitilganda, uning bosimi o`zgarmay dastlabki hajmi 30 % ga oshsa, u qanday ish bajaradi?
Javob:_____________________________________________________
20. Erkin tushayotgan1 kg massali jismning beshinchi sekundda og‘irlik kuchinig quvvatini toping( W).
Javob:________________________________________________________
21. Suvli idishda muz parchasi suzib yuribdi. Uning ustidan kerosin quyilsa muzning botish chuqurligi qandayo`zgaradi?
Javob:_____________________________________________________
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 3670 C va bosimi 8,31·105 Pa bo`lgan kislorodning zichligini aniqlang (kg/m3)
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