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The objective of this project is to design a low-cost, electric-powered, portable or wearable consumer product that meets a need you have identified. In performing every function, the electricity required must come fully from human motion. No electricity from batteries and/or wall sockets is allowed. Additionally, the product must not be intrusive or interfere with the normal activities of the user, alter his/her gait or range of motion, lead to possible physical disability, or induce accidents leading to injury. The product cannot resemble any existing product unless it has a valuable new feature, significantly reduces cost, or provides some other meaningful advantage. The final report will include schematics, circuit diagrams, a parts list, and a suggested retail cost based on comprehensive costing.
a 850-kg meteoroid happens to be composed of aluminum. when it is far from the earth its temperature is -13.5 degc and
nitrogen n2 initially occupying 0.1 m3 at 6 bar 2478c undergoes an internally reversible expansion during which pv 1.20
Circuit boards are manufactured on sheets and tested. On average, there are 3 defects per sheet. What are the chances of 10 defects on a given sheet, no defects on a sheet, and more than 1 defect on a sheet?
Using the results of Problem 1.38, determine the modified coefficient of performance and the required power input W under (a) clean and (b) dusty coil conditions.
A closed rigid tank contains water in equilibrium at a temperature of 225 °C and a quality of 0.35 (35%). The mass of the liquid water present is 0.25 kg. What phases are present in the system? (Give justification) What is the mass of vapor that is p..
velocity at impeller exit is 30.5 m/s and the slip factor is .9. Given that the flow area at impeller exit is .1m^2 and the total efficiency of the impeller is 90%, determine the mass flow rate.
a piston-cylinder device contains steam initially at 1 mpa 450degc and 2.5 m3. steam is allowed to cool at constant
case study pacific ltdre accounting issues year ending 30 june 2014from steven evans s.evanspacificlimited.com.ausent
water is the working fluid in a regenerative rankine cycle with one closed feedwater heater and one open feedwater
18 ft3/s of air at 80oFenters a compressor at a pressure of 14.7 psi. The air leaves at a pressure of 90 psi. Heat loss from the compressor occurs at a rate of 9.7 Btu per lbm of air flowing through the compressor. If the compressor requires 90 hp, w..
the hot-water needs of a household are met by a 60-l electric water heater whose heaters are rated at 1.6 kw. the
If superman has a mass of 100 Kg on his birth planet Krypton, where the acceleration of gravity is 25 m/s2, determine
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