Engineering, 27.11.2019 21:31 staceyminick1
The satellite has a mass of 200 kg and a radius of gyration about z axis of k z = 0.1 m , excluding the two solar panels a and b. each solar panel has a mass of 15 kg and can be approximated as a thin plate. if the satellite is originally spinning about the z axis at a constant rate ω z = 0.5 r a d / s w h e n θ = 90 ° , determine the rate of spin if both panels are raised and reach the upward position, θ = 0 ° , at the same instant.
Answers: 3
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
Fluids at rest possess no flow energy. a)- true b)- false
Answers: 3
Engineering, 04.07.2019 18:10
Coiled springs ought to be very strong and stiff. si3n4 is a strong, stiff material. would you select this material for a spring? explain.
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Engineering, 04.07.2019 19:10
10 kg of co2 is initially contained at 400 kpa and 300 k. the gas constant for carbon dioxide is 189 j/lkg k) and has a specific heat ratio, k, of 1.289. isentropic expansion then occurs until the pressure is 200 kpa. a) determine the initial volume of co2 in m. b) determine the final temperature in k. c) determine the work done by the system during the expansion kl.
Answers: 2
The satellite has a mass of 200 kg and a radius of gyration about z axis of k z = 0.1 m , excluding...
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