MCQ
At NTP, water boils at 100°C. Deep down the mine, water will boil at a temperature.
- A100°C
- ✓> 100°C
- C< 100°C
- Dwill not boil at all
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$(A)$ the point $O$ has linear velocity $3 R \omega \hat{ i }$.
$(B)$ the point $P$ has a linear velocity $\frac{11}{4} R \omega \hat{ i }+\frac{\sqrt{3}}{4} R \omega \hat{ k }$
$(C)$ the point $P$ has linear velocity $\frac{13}{4} R w \hat{ i }-\frac{\sqrt{3}}{4} R \omega \hat{k}$
$(D)$ The point $P$ has a linear velocity $\left(3-\frac{\sqrt{3}}{4}\right) R w_{\hat{ i }}+\frac{1}{4} R w_{\hat{k}}$.
(Take $\gamma$ for nitrogen and $CO_2$ as $1.4$ and $1.3$ respectively)
