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1. A jet flies at an altitude of 12 km where the air is at -40?C, 45 kPa, with a velocity of 1000 km/h. Find the Mach number and the stagnation temperature on the nose.
2. The speed of sound in liquid water at 25?C is about 1500 m/s. Find the stagnation pressure and temperature for a M = 0.1 flow at 25?C, 100 kPa. Is it possible to get a significant Mach number flow of liquid water?
The modulus of elasticity of an un-identified metal is known to be 3000 ksi. An engineer has to design a rod with a fixed diameter to carry a load, P, and wishes to keep the deformations in the rod to a minimum.
The connection point is now heated by a burning candle. Do you expect any current to flow through the wire?
Consider again the proposed water treatment plant for a city of 100,000 people where the maximum daily water usage rate is 99 X 106 L/d. Determine
In a constant-head permeability test a sample of soil12 cm long and 6 cm in diameter discharged at 1.5*10^-3 of water in 10 minutes. The head difference in two piezometers A and B located at 1 cm and 11 cm
A 1.10% Carbon hypoeutectoid plain carbon steel is slowly cooled from 900 degrees C to just slighty below 723 degrees C calculate the weight percent proeutectoid cementite present in this steel.
For a given tank circuit resonance frequency, what is the parameter that determines the bandwidth
Water at 50 C flows in a 150-mm diameter pipe with a velocity of 7.5 m/s. Measurements of head loss through the pipe indicate that f=0.020. Determine the value of e. Find the shear stress at the pipe wall and at r=30 mm. What is the value of du/dy at..
If the discharge is 500cfs, what power output may be expected from the turbine. Assume that the turbine efficiency is 90% and that the overall head loss is 1.5V 2/2g, where V is the velocity in the 7 ft penstock.
When X exceeds some critical distance the slider will "lock" and no longer move regardless of the force applied. If the coefficient of friction for the slider bearing is 0.1, what is the critical value for X in inches
Design a rectangular channel contraction from width b1 (upstream) to width b2 (downstream). Assume uniform flow approaches the contraction (i.e. normal depth approaching the channel contraction).
An industry discharges PCE (tetrachloroethene, tetratchloroethylene, or perchloroethylene) into a small, well-mixed lake. The influent concentration is 0.4mg/L and the hydraulic residence time of the lake is 5days.
Molybdenum has a BCC crystal structure, an atomic radius of0.1363 nm, and an atomic weight of 95.94 g/mol. Compute andcompare its theoretical density with the experimental valuefound inside the cover.( experimental density is 10.22g/cm^3)
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