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A system consists of a gas confined between a cylinder and piston such that work and heat may cross the boundary. What type of system is that? What type of system is a free body as used in mechanics or civil engineering? What type of system would you classify an electric wire with current passing through it?
Consider CO2 emissions from a gasoline powered vehicle. Gasoline is acomplex mixture of hydrocarbons but for the purposes of this calculation assume an average molecular formula of C7H16.
Assume that theta is given in degrees, and write the MATLAB statements to evaluate tan(theta) as long as the magnitude of cos( theta) is grater than or equal to 10^(-20). If the magnitude of cos(theta) is less than 10^(-20)
According to Archimede's principle, the buoyancy force actingon that object that is partially immersed in a fluid is equal tothe weight that is displaced by the portion of the object that issubmerged.
design a horizontal curve for a two-lane road. The road has 12-ft. lanes. Due to expansive excavation, it is determined that a maximum of 34 ft. can be cleared from the road's centerline toward the inside lane to provide for stopping sight distanc..
A $10,000 bond that matures in 20 years with interest at 8% per year payable quarterly was issued 4 years ago. If the bond is purchased now for $10,000 and held to maturity, what will be the effective rate of return per quarter to the purchaser
A uniform ladder with a mass of 15 kg is placed on a frictionless vertical wall. An 80 kg person climbs up the ladder. If the coefficient of friction between the floor and the base of the ladder is 0.15, how far did the person climb
In a support system in the U.S. space program, a single crucial component works only 85% of the time. In order to enhance the reliability of the system
Carnot engine working between a source temperature of T2 and sink temperature of T1 has efficiency of 25%. if the sink temperature is reduced by 20 degrees Celsius the efficiency is increased to 30%. find the source and sink temperature
If you were asked to perform an excavation contract competitively with limited data, what type of contract would you want and why?
Explain about pres-stressed concrete
1.for the pinned frame below subjected to a 500 kn lateral force what are the internal forces in each member? 2.for a
problem 1. solve the following three questions of the beam abc. note that a is a roller support b is a pin connection
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