2-66 Determine the speed of sound in air at (a) 300 K an (b) 800 K. Also determine the Mach number of an aircra moving in air at a velocity of 330 m/s for both cases.

In a wastewater treatment plant, Blower supplies air to the sequencing batch reactor. It is necessary to regulate the amount of air being introduced to the reactor and the plant uses pitot static tube meter at the center of flow to measure the maximum flow rate. The manometer shows a difference in head of 75mm.H2O. Determine the maximum air velocity (in m/s, four decimal places). Assume the coefficient of the pitot tube as 0.98. ρair = 1.2 kg/m3, ρwater =1000 kg/m3

1-6. The fuel for a jet engine has a density of 1.32 slug/ft³. If the total volume of fuel tanks A is 50 ft°, determine the weight of the fuel when the tanks are completely full.

Q, nozzle.

Q1/ Air at 10 C flows through a 40-cm pipe at a velocity of 5m/s. (a) Determine the mass flow rate, M ; the weight flow rate, G; and the volume flow rate, Q. Q2/ Water flows at volume flow rate, Q of 50 ft'/s (cfs) through a pipe as illustrated in Figure. A conical diffuser is used to decelerate the fluid flow in order to achieve pressure recovery in the flow. The velocity of flow in the smaller pipe diameter is 30 ft/sec, and the velocity of flow in the larger pipe diameter is 10 ft/sec. (a) Determine the pipe diameter of the smaller pipe. (b) Determine the pipe diameter of the larger pipe. Q-50 cs 30 fs 10 fps Q3/ Water flows in a rectangular open channel of width 5 ft at a volume flow rate (discharge) of 100 ft3/s (cfs) and a depth of 2 ft. Determine the velocity of flow in channel. Q4/ Water from a faucet with a 1 in diameter fills a 30 ft3 tank in 2 minutes, as illustrated in Figure (a) Determine the mass flow rate, M, the weight flow rate, G and the volume flow rate, Q through…

1. I have taken a sound reading and my sound level meter (SLM) is showing the result in Pascals, not dB (shouldn't have bought a cheap one). The maximum pressure shown is 101,008 Pa. Before the noise started, the air pressure was about 101,001 Pa, so the noise increased it by just 7 Pa. This doesn't seem right because the noise was really loud. Is my meter broken? What is the noise level in decibels (WRT 20µPa)?