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An important dimensionless parameter concerned with very high-speed flow is Mach Number, defined as V/c, where V is the speed of the object such as airplane or projectile, and c is the speed of sound in the fluid surrounding the object. Jet airliners typically fly at altitudes of between approximately 0 to 40,000 ft.
a. Show on a graph how the speed of sound varies over this range
b. If the Jet has is flying at 500 mph at an altitude of 30,000 ft what is the value of the Mach number?
a delivery company accepts only rectangular boxes the sum of whose length and girth (perimeter of a cross section) are equal to 108cm. find the dimensions of an acceptable box of a largest area.
A vertical curve of 600 ft in length is used to connect two tangents with the following locations: Tangent 1.- Point 1, Sta = 59+00, El = 1250.0' Point 2, Sta = 72+00, El = 1190.0' Tangent 2.- Point 1, Sta = 72+00, El = 1190.0' Point 2, Sta = 84+0..
the recommended threshhold limit value ( TLV-ACGIH) air concentration for occupational exposure to water-insoluble hexavalent chromium Cr (VI) is 0.01 mg/M^3. this concentration is based on an assumption that the individual is generally healthy an..
After the Chernobyl accident, the concentration of 137Cs in milk was proportional to the concentration of 137Cs in the glass that cow consumed. The concentration in the grass was, in turn, proportional to the concentration in the soil.
The subcritical water level in the channel downstream from the stilling basin is at an elevation of 100 feet above the datum. assume no energy loss over the spillway, determine the invert of the stilling basin required to form a hydraulic jump in ..
Annual maintenance cost for a particular section of highway pavement are $2000. The placement of a new surface would reduce the annual maintenance cost to $500 per year for the first 5 years and to $1000 per year for the next 5 years.
determine critical depth in a circular pipe of 36 inches diameter and roughness coefficient of 0.015. The flow rate is 15 cfs. So = 0.002
Determine the force P required to move the wedge under the post. The coefficient of static friction between all surfaces is 0.25. The applied force F is 200 lbs and the angle alpha is 15 degrees.
An underground storage vault is to be constructed to serve as a detention pond for a heavily urbanized area. The walls of the vault will be vertical, but the flow will be sloped along its length to promote drainage.
One mole of an ideal monoatomic gas initially at 300 K is expanded from an initial pressure of 10 atm to a final pressure of 1 atm. The molar heat capacity for constant volume for the gas is Cv = 3/2 R .
it was observed that the quantity of the water flowing through the sand layer into the collection ditch is 250 m^3/day. What is the hydraulic conductivity of the sand (k)
What are the important findings in Austin Road Co. v. OSHRC and Builders Steel Co. v. Marshall? Your response should be approximately 200 - 300 words and include a reference citation for your response.
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