Q$1)$ Air flows steadily between two cross sections in a long, straight section of $0\mathrm{.}1-$m$-$inside$-$

diameter pipe. The static temperature and pressure at each section are indicated in Figure. If

the average air velocity at section $(1)$ is $205\frac{m}{s},$ determine the average air velocity at section

$(2).$

$p_1=77$kPa $(abs)$

$T_1=268K$

$V_1=205\frac{m}{s}$

$p_2=45$kPa $(abs)$

$T_2=240K$