Physics, 27.07.2019 00:30 clydeben4543
Ajet engine is being tested on a test stand. the inlet area to the compressor is 0.2 m2 and air enters the compressor at 90 kpa, 100 m/s. the pressure of the atmosphere is 100 kpa. the exit area of the engine is 0.1 m2, and the products of combustion leave the exit at a pressure of 130 kpa and a temperature of 1000 k. the air fuel ratio is 46 kgair/kgfuel , and the fuel enters with a low velocity. the mass flow rate of air entering the engine is 20 kg/s a)determine the inlet temperature b) determine the exit velocity of combustion products. c) determine the thrust on the engine
Answers: 3
Physics, 22.06.2019 05:00
Aperson walking 1 mile everyday for exercise, leaving her front porch at 9: 00 am and returning to her front porch at 9: 25 am. what is the total displacement of her daily walk? a) 1 mileb) 0c) 25 minutes d) none of the above
Answers: 1
Physics, 22.06.2019 07:00
The speed of sound in ice, water, and steam is shown. what best explains the speed of sound in different states of matter? sound travels fastest in ice because energy is easier to transfer when the molecules are close together. sound travels slowest in steam because the sound has to move around the gas molecules that are far apart. sound travels fastest in ice because the temperature of solids is always greater, so the heat transfers the sound energy. sound travels slowest in steam because the pressure is so great the sound cannot travel though the steam particles.
Answers: 1
Physics, 22.06.2019 13:40
Which of the following is not a transverse wave? a) soundb) lightc) radiod) all of thesee) none of these
Answers: 1
Physics, 22.06.2019 14:30
Suppose that 27 j of work is needed to stretch a spring from its natural length of 6 m to a length of 9 m. (a) how much work is needed to stretch the spring from 12 m to 14 m? j (b) how far beyond its natural length will a force of 78 n keep the spring stretched?
Answers: 2
Ajet engine is being tested on a test stand. the inlet area to the compressor is 0.2 m2 and air ente...
Mathematics, 08.02.2021 18:40
Arts, 08.02.2021 18:40
Physics, 08.02.2021 18:40
History, 08.02.2021 18:40
Mathematics, 08.02.2021 18:40
Mathematics, 08.02.2021 18:40
Computers and Technology, 08.02.2021 18:40
Mathematics, 08.02.2021 18:40
Mathematics, 08.02.2021 18:40