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A rigid tank whose volume is 10L is initially evacuated. A pinhole develops in the wall, and air from the surroundings at 1 bar, 25 degrees Celsius enters until the pressure in the tank becomes 1 bar. NO significant heat transfer between the contents of the tank and the surroundings occurs. Assuming the ideal gas model with k=1.4 for the air, determine
(a) the final temperature in the tank, in degrees Celsius, and (b) the amount of air that leaks into the tank, in g.
Box I contains 3 red and 5 white balls, while Box II contains 4 red and 2 white balls. A ball is chosen at random from the first box and placed in the second box without observing it's color. Then a ball is drawn from the second box.
what is the equation to get volume of cut and volume of fill if i used excel formulated , in construction methods.
What are two types of variables that can be used for values that are less than 128, and describe what is the difference between the variables, how to declare them, and the memory allocated and the numerical range for both.
10-kg of nitrogen is heated from 20 degrees C to 250 degress C. Determine the total amount of heat required when this is done in (a) a constant-volume process and (b) an isobaric process.
For any flowrate, the pressures in the pipes upstream and downstream of the reducer are expected to be related by using Bernoulli's equation where p1 and p2 are the upstream and downstream pressures and V1 and V2 are the upstream and downstream ve..
water flows through a pipe of diameter 3 inches. If it is desired to use another pipe for the same flow rate such that the velocity head in the second pipe is four times the velocity of the first pipe.determine diameter of pipe
A race car C is being tracked via telemetry. The on-board acclerometer records and acceleration level of -.7get+.5gen. If you know that the v at this instant is 200km/hr, what is the tracks radius of curvature at this instant
If it is subjected to the load of 20kN and the soil provides a frictional resistance that is uniformly distributed along its sides of w = 3kN/m , determine the force at its bottom needed for equilibrium. Neglect the weight of the post.
FeCl3 is added to remove excess phosphate. The following reactions occur (the charges are in parentheses): FeCl3 -> Fe(3+) + 3Cl(-) Fe(3+) + PO4(3-) -> FePO4 The equilibrium constant for the second reaction is 10^26.4.
The town needs a total of 2 mgd. The capacity of well 1 is 5 million gallons per day, and that of well 2 is 10 mgd. Using calculus (hint: calculus with substitution), determine the optimal amount of water that will be drawn from each well
Describe the problem of lack of coordination between design and construction in a traditional contract. In agency CM,what expertise does the CM provide during the pre-design and design phase.
For a proposed level of stress, ninety percent of consolidation occurred in 15.8 minutes (t90=15.8min) for a laboratory consolidation test of a 12.7 mm thick clay specimen. In the field a 6.5m layer of the clay is sandwiched between sand layers.
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