I NEED THE THIRD $($#$3/10\mathrm{.}3)$ QUESTION ANSWERED PLEASE

QUESTION $10\mathrm{.}1$

Consider a low$-$speed wind tunnel $($see Figure $4\mathrm{.}15$ in text$)$ that is a constant width of $2$ m throughout its length $($i$.$e$.,$ each cross section of the tunnel is a rectangle of width $2$ m $).$ The entrance and exit heights of the nozzle are $4$ and $0\mathrm{.}5$ m $,$ respectively. The airflow velocity in the test section is $150$ mph $.$ Calculate the airflow velocity in $\frac{m}{sec}$ at the entrance to the nozzle.

QUESTION $10\mathrm{.}2$

The air pressure in the reservoir of the tunnel considered in Question $10\mathrm{.}1$ is $1$ atm $.$ Calculate the pressure in the test section in $\frac{N}{m^2}.$ Assume that the air in the tunnel is at standard sea$-$level density.

QUESTION $10\mathrm{.}3$

Consider the flow through the wind tunnel in Question $10\mathrm{.}1.$ The entrance and exit heights of the diffuser are $0\mathrm{.}5$ and $3\mathrm{.}5$ m $,$ respectively. What are the flow velocities at the entrance and exit of the diffuser?