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A piece of equipment originally costing $40,000 was put into use 12 years ago. At the time the equipment was put into use, the service life was estimated to be 20 years and the salvage and scrap value at the end of the service life were assumed to be zero. On this basis, a straight-line depreciation fund was set up. The equipment can now be sold for $10,000, and a more advanced model can be installed for $55 000 Assuming the depreciation fund is available for use, how much new capital must be supplied to make the purchase?
The U.S. Environmental Protection Agency (EPA) recommends that 222Rn levels not exceed 4 pCi per liter of air (1Ci=3.7x10^10 decay events per second; 1 pCi =1x10^-12 Ci).
Find the value of Ia for which the generator efficiency is a maximum.
What is the expansion factor of this scheme and what are its visual threshold values?
Draw circuit diagrams and show polarity markings.
A 100-liter fed-batch fermenter was successfully operated for 200 h using an aeration rate of 14 l/s and a 5 W agitator. It is proposed to scale the fermentation up to 10,000 liters. What agitator power consumption is required?.
The limestone is supplied with average dimension 1.5 cm and must be reduced to 20 mesh before feeding to the gasification process. Recommend equipment to achieve the desired particle size and estimate the work required.
question 1the effect of a hazardous substance depends on the concentration of the substance that is present in the
If nitrogen at 150o C flows past one section of the tube at a velocity of 2.5 m s-1, what is its temperature at another section where its velocity is 50 m s-1? Let CP = (7/2)R.[148.80 C]
Obtain a general expression for the eigenvalues of a 2 × 2 matrix, and use it to characterize the equilibrium points of the second-order system with the given state matrix
If the origin, o, is located at the wing tip and the leading & trailing edge curve is given above, find the constant c at the wing root and then calculate the chord of the wing at position 2 and position 3 as indicated in figure 1. (Marks Breakdow..
The circuit is to be tuned to the first station at a frequency of 1000 kHz. In order to minimize the interaction between signals, the tuning circuit response must attenuate the signal of the second station (with a frequency of 1020 kHz) by four ti..
Calculate the efficiency of the induction generator.
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