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The solubility of nitrogen gas in rubber at 25°C is 0.00156 kmol/m3 · bar. When phase equilibrium is established, the density of nitrogen in a rubber piece placed in a nitrogen gas chamber at 800 kPa is
(a) 0.012 kg/m3
(b) 0.35 kg/m3
(c) 0.42 kg/m3
(d) 0.56 kg/m3
(e) 0.078 kg/m
Starting from rest, a 4.0-kg body reaches a speed of 8.0 m/s in 2.0 s. What is the net force acting on the body?
What roles should technical experts like water engineers play in public policy decision-making issues, such as water demand management, water reuse and associate water quality issues
Steam enters the turbine of a single vapor power plant with a pressure of 10 MPa and a temperature of 580 C and expands adiabatically to 6 kPa. The isentropic turbine efficiency is 85%. Saturated liquid exits the condenser at 6 kPa and the isentropic..
Consider a piston/cylinder arrangement that has a linear spring mounted such that as the piston rises to a certain point it will encounter the spring, which will offer a downward component of force as the piston rises further. Initially the cylinder..
When the engine of the plane is running, the vertical reaction that the ground exerts on the wheel at A is measured as 616lb . When the engine is turned off, however, the vertical reactions at A and B are 520lb each.
If the engine is mounted solidly on a rigid foundation, what is the alternating force amplitude transmitted? Assume the connection rod to be of infinite length.
A worker is to paint the walls of a square room 8ft high and 12 ft along each side. what surface area in square meters must she cover?
The steel rails of a continuous, straight railroad track are each 60 ft long and are laid with spaces between their ends of 0.25 inches at 70 degrees F. At what temperature will the rails touch end to end? What compressive stress will be produced in ..
For some minerals color is a diagnostic property making identification rather easy. However, certain minerals can also occur in a wide variety of colors making color a poor tool for identification. List different colors for the mineral quartz lo..
Write a computer program that generates a sequence of random variables from a normal distribution with mean 5 and standard deviation 2.
A normally consolidated clay layer in the field has a thickness of 3.2 m with an average effective stress of 70 kN/m^2. A laboratory consolidation test on the clay gave the following results: Pressure (kN/m^2)=100, 200 Void Ratio=0.905, 0.815
Determine the horizontal spacing of the vertical drains if the drains are installed in triangular grid to reach 90% of primary consolidation in 1.5 years after the commencement of fill placement.
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