Engineering, 24.04.2020 22:07 idk7193
Developments in technology are always improving lenses and mirrors, increasing focal lengths, and magnifying powers. Research the critical new developments in telescopes, and telescopic lenses. Write a 200 word paper on the new developments, describing how these effect the telescopes, and in what environments these work best. Remember to cite any sources you use in your paper.
Answers: 2
Engineering, 03.07.2019 15:10
Heat is added to a piston-cylinder device filled with 2 kg of air to raise its temperature 400 c from an initial temperature of t1 27 cand pressure of pi 1 mpa. the process is isobaric process. find a)-the final pressure p2 b)-the heat transfer to the air.
Answers: 1
Engineering, 04.07.2019 18:10
For the closed feedwater heater below, feedwater enters state 3 at a pressure of 2000 psia and temperature of 420 °f at a rate of ix10 ibhr. the feedwat extracted steam enters state 1 at a pressure of 1000 psia and enthalpy of 1500 btu/lbm. the extracted er leaves at an enthalpy of 528.7 btu/lbm steam leaves as a saturated liquid. (16) a) determine the mass flow rate of the extraction steam used to heat the feedwater (10) b) determine the terminal temperature difference of the closed feedwater heater
Answers: 3
Engineering, 04.07.2019 18:10
Slip occurs via two partial dislocations because of (a) the shorter path of the partial dislocation lines; (b) the lower energy state through partial dislocations; (c) the charge balance.
Answers: 1
Engineering, 04.07.2019 18:10
An ideal otto cycle with air as the working fluid has a compression ratio of 8. the minimum and maximum temperatures in the cycle are 300 k and 1340 k. use constant specific heats at room temperature to determine (a) the amount of heat transferred to the air during the heat- addition kj/kg, (b) the thermal efficiency, and (c) the thermal efficiency of a carnot cycle ope limits. process, in rating between the same temperature
Answers: 2
Developments in technology are always improving lenses and mirrors, increasing focal lengths, and ma...
Health, 04.10.2019 19:30
English, 04.10.2019 19:30
Health, 04.10.2019 19:30
Mathematics, 04.10.2019 19:30
Mathematics, 04.10.2019 19:30
Mathematics, 04.10.2019 19:30
Social Studies, 04.10.2019 19:30
World Languages, 04.10.2019 19:30
Mathematics, 04.10.2019 19:30
English, 04.10.2019 19:30
Mathematics, 04.10.2019 19:30