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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?
Find the relationship between voltage across the membrane and the concentration of CaCl2 before equilibrium is reached.
If the gases enter the reactor at 348.15 K (75"C), if conversion is 80%, if no side reactions occur, and if the reactor operates adiabatically, what is the temperature of the gases leaving the reactor? Assume ideal gases.
A fluid level control system includes a tank, a level sensor, a fluid source, and an actuator to control fluid inflow. Consult any classical control text1 to obtain a block diagram of an analog fluid control system. Modify the block diagram to sho..
If a wye-delta starting method is employed, find the starting current and the starting torque.
Find the width (in the x-direction) of the Rankine oval created by the flow, and the pressure difference between a point at infinite distance upstream and the point of coordinates (1,1).
Why is a polycrystalline alumina sheet (i.e. substrate) usually white and not transparent? What must be changed to make it transparent?
how the interconnections and appropriate polarity markings.
Design a sieve plate column to perform this separation, for a feed rate of 10,000 kg/hour. Treat the feed as a binary mixture of ethanol and water. Take the feed temperature as 20 °C. The column will operate at 1 atmosphere.
what is the power requirement of the compressor and what is the discharge temperature of the propylene?
200 kg of carbon dioxide are stored in a tank at 25 °C and 70 bar. Is carbon dioxide an ideal gas under the conditions in the tank?
What is the minimum value of qo so that the bottom fibers just begin to yield? What are the depths of plastic penetration d1 and d2 for a load qo that is 1.1 times the value just calculated.
The volume flow rate is 24 m3/s over an area of 8 m2 with a head of 100 m, and it discharges in the axial direction without swirl. Find the speed of the runner. Neglect losses.
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