Science Question!! quick!!15點~

2011-10-18 12:39 am
我想問why the tyre can be inflated when we pump in some gas?
唔該~plz help!!!>.<

回答 (2)

2011-10-18 8:52 pm
✔ 最佳答案
the gas has volume
it occupies the space inside the tyre
with this "outward" force, or tension
the tyre is inflated
參考: myself
2011-10-18 10:55 pm
This is because when you set the gauge to 34 psi , if the pressure in the tyre is less than 34 psi , the gas will be pumped into the tyre , when the tyre reaches 34 psi , no gas will pumped into it . Always gases move from high pressure to low pressure .


收錄日期: 2021-04-13 18:18:42
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