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The thin-walled pipe has an inner diameter of 0.5 in. and a thickness of 0.025 in. If it is subjected to an internal pressure of 500 psi and the axial tension and torsional loadings shown, determine the principal stress at a point on the surface of the pipe.
Use dimensional analysis with the following parameters: height of spillway (P), head on the spillway (H), viscosity of liquid, density of liquid, surface tension, and acceleration due to gravity.
Jackie is now exactly 40 years old, and plans to invest a recurring amount over the next 15 years (until age 55) in an account bearing 10% annual interest. She plans to retire at age 65 and live to age 100
Using the method of lee et al. predict the temperature required in an isothermal plug flow incinerator to reduce the xylene level in a waste gas from 1000 ppm to 10ppm. Assume a residence time of 0.7 sec.
The discussion must address phase angle relationships of current and voltage. The answer must include the effect of source frequency on the voltage drops across the resistor and the inductor at very low and very high frequency values.
If this two-step process is replaced by a single isothermal expansion of the air from 800 K and 4 bar to some final pressure P, what is the value of P that make the work of the two processes the same
According to barton(1974) the quality of a given rock mass can bedetermined using the equation below. explain each of the parametersin the equation is obtained.
The cost of extending a certain road is $850,000. Resurfacing and other maintenance are expected to cost $175,000 every 3 years and lasts for 96 years. What is the present worth of the road at an interest rate of 6% per year (over that period)
Three shafts and four gears are used to form a geartrain which will transmit 7.5 kW from the motor at A to a machine tool at F. (Bear- ings for the shafts are omitted from the sketch.) Knowing that the frequency of the motor is 30 Hz
On a single graph, show how the Gibbs energies of each of these phases vary with temperature between - 20 C and 150 C for a constant pressure of 80 kPa. You can start your computations at the triple point
An air compressor is used to pressurize a cylindrical tank which contains air at atmospheric pressure. The tank's diameter is 3 ft and it is 5 ft long. The supply line is 1 inch in diameter.
The settlement of a laboratory 10-cm thick consolidation specimen is 5 mm in 1 hour with a coefficient of consolidation of 0.005cm2/s. What will be the total settlement
The magnetic north azimuth of a line is 128 degrees 27' while the magnetic declination is 3 degrees 30'E. What is the astronomic azimuth of the line (in decimal degrees)?
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