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It is thought that a new process for producing a certain chemical may be cheaper than the currently used process. Each process was run 6 times, and the cost of producing 100-L of the chemical was determined each time. The results, listed in dollars, were as follows: New Process 51 52 55 53 54 53 Old Process 50 54 59 56 59 58 Can you conclude that the mean cost of the new method is less than that of the old method?
Assuming a gage reading in the approach well(haa) of 13 ft, select a Parshall flume capable ofmeasuring a flow of 700 ft/s without submerging the flow.
a company that manufactures regenerative thermal oxidizers made an investment 10nbspyears ago that is now worth
develop a spreadsheet application that will display in a table the values of modulus of elasticity Ec for concrete having unit weight ranging from 95 pcf to 155 pcf (in steps of 5 pcf) and compressive strength ranging from 3500 to 7000 psi
If the critical point in a DO sag curve is found to be 18km downstream from the discharge point of untreated wastewater, would you expect the critical point to move upstream (toward the discharge point)
Assume that you borrow $10,000 for five years (annual payments) at a market rate of 5%. Assuming that inflation is 3.5%, what would the equivalent equal monthly payment be in constant dollars
Crude oil at 20 degrees C fills the space between 2 concentric cylinders 250mm high with diameter of 150 and 156mm. What torque is required to rotate the inner cylinder at 12 rev/min
A large company in the communication and publishing industry has quantified the relationship between the price of one of itsproducts and the demand for this product as Price = 150- 0.01 x Demand for an annual printing of this particular product.
A 14in diameter pipe pile is driven 50ft into a dry loose sandwhose unit weight is 105 pcf. The angle of internal frictionis 33 degrees. Compute the safe axial downward loading
A 1 meter diameter cylindrical mass, M, is connected to a 2 meter wide rectangular gate. The gate is to open when the water level, h, drops below 2.5 meters. Determine the required value for M. Neglect friction at the gate hinge and pulley.
The regulatory agency has told the company to maintain a salt level pf no greater then 250 mg/L downstream of the discharge. what should the removal efficiency. (percentage of the salt removed) of a process designed to remove salt from the waste w..
A student in the laboratory plans to exert a vacuum in the head space above a surface of water in a closed tank. She plans for the the absolute pressure in the tank to be 10,400 Pa. The temperature in the lab is 20°C.
An ideal Brayton refrigeration cycle has a compressor ratio of 3.75. The air enters the compressor at 1bar, 27°C. The temperature at the inlet of the turbine is 77°C. Using Air Standard Method Determine on a per unit mass of air flowing
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