A fire truck supplies $\backslash (240\backslash$mathrm$\{$gal$\}/\backslash$mathrm$\{$min$\}\backslash )$ of water to the third story of a building at $\backslash ($ B $\backslash )$ as shown in $($Figure $1).$

Part A

If the friction loss through the $60-$ft$-$long, $2\mathrm{.}5-$in$.-$diameter hose is $12$ ft for every $100$ ft of hose, what is the average velocity of the water as it is ejected through a $1\mathrm{.}25-$in$.-$diameter nozzle at $\backslash ($ B $\backslash )?$

Express your answer in feet per second to three significant figures.

V

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Part B

Also, determine the required pressure developed at the outlet $\backslash ($ A $\backslash )$ of the pump located within the truck close to the ground.

Express your answer in pounds per square inch to three significant figures.

$\backslash ($ p$\_\{$A$\}=\backslash )$ psi

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