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Consider a small air pistol (Fig. P6.86) with a cylinder volume of 1 cm3 at 250 kPa, 27?C. The bullet acts as a piston initially held by a trigger. The bullet is released, so the air expands in an adiabatic process. If the pressure should be 120 kPa as the bullet leaves the cylinder, find the final volume and the work done by the air.
A water pipe gradually changes from 6 in to 8 in diameter accompanied by an increase in elevation of 10 f t. If the pressure at the 6 in and 8 in sections are 9 psi and 6 psi respectively, what is the direction of flow for 3 cfs flow
Heart failures are due to either natural occurrences (81%) or outside factors (19%). Outside factors are related to induced substances (73%) or foreign objects (27%). Natural occurrences are caused by arterial blockage (56%), disease (27%), and infec..
Because the discharge quantity of groundwater is a variable and the cost of discharging the groundwater to a municipality's sanitary sewer system is quite costly, which party should bear the financial risk and responsibility for this variable cost..
Determine the pH of water in a closed Calcium Carbonate Aquifer. Assume that the temperature is again 25oC, and that the aquifer material is pure Calcium Carbonate. Again you must list all species that exist in the system and all equations.
Important information about Mechanical engineering dynamics, A 3000 lb car rests on a horizontal street out of gas with its brakes locked.
An engineering student is driving on a level roadway and sees a construction sign 600ft ahead in the middle of the roadway. The students strikes the sign at a speed of 35mi/h. If the student was travelling at 55mi/h
A spherical balloon contains 10 lbm of air at 30 psia and 800 R. The balloon material is such that the pressure inside is always proportional to the square of the diameter. Determine the work done when the volume of the balloon doubles as a result..
The curved rod has a diameter d . Determine the vertical displacement of end B of the rod. The rod is made of material having a modulus of elasticity of E . Consider only bending strain energy.
The space truss shown is supported by a ball-and-socket joint at D and by short links at A and C. Determine the support reactions and the force in each member of the space truss.
A 73-mm diameter aluminum (SG=2.64) piston of 100-mm length residesin a stationary 75-mm inner diameter steel tube lined with SAE10W-30 oil at 25C. A mass m=2kg is suspended from the free end ofthe piston
Write a script file to simulate 100 plays of a game in which you flip two coins. You win the game if you get to heads, loose if you get two tails, and flip again if you get one head and one tail.
The results of a constant head permeability test for a fine sand sample having a diameter of 25cm and a length of 50 cm are as follows:
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