The solution of flow of water in a pipe network is shown in Fig. Compute: (a) The hydraulic grade line throughout the system. (b) The pressure at each node.

The water discharge in a rectangular channel 20 ft wide is 550 cfs. If the depth of water is 3 ft, is the flow subcritical or supercritical?

Which of the following are observed general properties of liquids?

variable shape

flow readily

expand significantly

less dense than gases.

Consider the visualization of flow over a $15^{\circ}$ delta wing in the figure. Are we seeing streamlines, streaklines, pathlines, or timelines? Explain.

Using curved arrows to symbolize the flow of electrons, write a stepwise mechanism for the aminolysis of $4$-acetamidobenzenesulfonyl chloride to give $4$-acetamidobenzenesulfonamide.

Consider the nozzle flow of previous problem, but in this case the Mach number at the throat is $0.72$. Determine the velocity at the nozzle exit for the given condition.

Water flows in a cast-iron pipe of 200-mm diameter at a rate of 0.10 m$^{3}$/s. Determine the friction factor for this flow.

Can heat flow either into or out of a substance without the substance changing temperature? If not, why? If so, explain and give an example of such a process.

Circle the BEST answer.
Oxygen flow rate is measured in
a mm/Hg
b Minutes
c L/min
d $SpO_{2}$

When a hot object warms a cooler object, does temperature flow between them? Are the temperature changes of the two objects equal?

Two long, straight wires are parallel and 10 cm apart. One carries a current of 2.0 A, the other a current of 5.0 A. (a) If the two currents flow in opposite directions, what is the magnitude and direction of the force per unit length of one wire on the other? (b) What is the magnitude and direction of the force per unit length if the currents flow in the same direction?

In the fabricated enlargement, the pressure at $A$ is $25.6$ psig and the pressure at $B$ is $28.2$ psig. Compute the volume flow rate of oil $(\mathrm{sg}=0.90)$.

Given the initial conditions of the previous exercise, tell, qualitatively and quantitatively, what will happen if the flow entering the first reservoir is increased $50 \%$.

A pipe in a compressed air system is carrying $2650\ \mathrm{cfm}$. Determine the flow rate in $\mathrm{ft}^3 / \mathrm{s}$.