Engineering, 10.12.2019 07:31 Lilyy1k
A2.0 v battery is rated at 5 ah. during continuous use, with the battery supplying a current of 200 ma, the battery voltage stays substantially constant at 2.0 v for the first 18 hours. during the next 12 hours, the voltage drops linearly to 1.76 v whereas the current drops linearly to 100 ma. at this point the battery is no longer considered useful. (a) how much energy was delivered by the battery during the 30 hours? (b) plot the battery voltage curve using matlab (x-axis is time in seconds and y-axis is voltage in volts). (c) plot the battery current curve using matlab (x-axis is time in seconds and y-axis is voltage in ampere). (d) plot the battery power curve using matlab (x-axis is time in seconds and y-axis is voltage in watt).
Answers: 2
Engineering, 04.07.2019 18:10
Carbon dioxide gas expands isotherm a turbine from 1 mpa, 500 k at 200 kpa. assuming the ideal gas model and neglecting the kinetic and potential energies, determine the change in entropy, heat transfer and work for each kilogram of co2.
Answers: 2
Engineering, 04.07.2019 18:10
Items are similar to the free issue items, but their access is limited. (clo5) a)-bin stock items free issue b)-bin stock controlled issue c)-critical or insurance spares d)-rebuildable spares e)-consumables
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Engineering, 04.07.2019 18:20
How much power could a wind turbine produce if it had the following specifications? cp = 0.45 -d=1.2kg/m3 d=50m v 5m/s
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Engineering, 04.07.2019 18:20
For each of the following process: a) sketch the p-v diagram, b)sketch t-s diagram, c) sketch t-v diagram, d) sketch the boundary work on one of the diagrams (a, b or c) and e) sketch the reversible heat transfer on one of the diagrams (a, b or c): 1- isobaric process from compressed liquid to superheated vapor 2- isothermal process from compressed liquid to superheated vapor 3- isentropic process from compressed liquid to superheated vapor
Answers: 3
A2.0 v battery is rated at 5 ah. during continuous use, with the battery supplying a current of 200...
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