Engineering, 13.06.2020 23:57 Senica
21. Protecting the whole ecosystem may help save many help save many species, but it will not help to maintain the ecosystem functions
False
True
Answers: 2
Engineering, 03.07.2019 14:10
Amass of 1.5 kg of air at 120 kpa and 24°c is contained in a gas-tight, frictionless piston-cylinder device. the air is now compressed to a final pressure of 720 kpa. during the process, heat is transferred from the air such that the temperature inside the cylinder remains constant. calculate the boundary work input during this process.
Answers: 2
Engineering, 04.07.2019 18:10
Aloaded platform of total mass 500 kg is supported by a dashpot and by a set of springs of effective stiffness 72 kn/m. it is observed that when the platform is depressed through a distance x = 12.5 cm below its equilibrium position and then released without any initial velocity; it reaches its equilibrium position in the shortest possible time without overshoot. find the position and velocity of the loaded platform 0.10 sec. after its release. if a further load of 400 kg is added to the platform, find, i) the frequency of damped vibrations, and i) the amplitude of vibration after 2 complete oscillations, given that the initial amplitude is 15 cm.
Answers: 1
Engineering, 04.07.2019 18:10
Aplate clutch has a single pair of mating friction surfaces 250-mm od by 175-mm id. the mean value of the coefficient of friction is 0.30, and the actuating force is 4 kn. a) find the maximum pressure and the torque capacity using the uniform-wear model. b) find the maximum pressure and the torque capacity using the uniform-pressure model.
Answers: 3
Engineering, 04.07.2019 18:10
Which of the following refers to refers to how well the control system responds to sudden changes in the system. a)-transient regulation b)- distributed regulation c)-constant regulation d)-steady-state regulation
Answers: 1
21. Protecting the whole ecosystem may help save many help save many species, but it will not help t...
Advanced Placement (AP), 03.02.2020 09:52
English, 03.02.2020 09:52
Mathematics, 03.02.2020 09:52
Mathematics, 03.02.2020 09:52
Mathematics, 03.02.2020 09:52
Mathematics, 03.02.2020 09:52
Chemistry, 03.02.2020 09:52
Biology, 03.02.2020 09:52
Physics, 03.02.2020 09:52
Mathematics, 03.02.2020 09:52
Health, 03.02.2020 09:52
Biology, 03.02.2020 09:52
Social Studies, 03.02.2020 09:52