Engineering, 17.08.2021 16:20 angelinakanno
1. The space between two square flat parallel plates is filled with oil. Each side of the
plate is 60cm. The thickness of the oil film is 12.5mm. The upper plate, which moves at
2.5m/s requires a force of 98.1N to maintain the speed.
Determine: The dynamic viscosity oil in poise, and
Dotarine
Answers: 1
Engineering, 03.07.2019 14:10
Explain the difference laminar and turbulent flow. explain it with the shear stress and the velocity profiles.
Answers: 1
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
Engineering, 04.07.2019 19:10
Tom is having a problem with his washing machine. he notices that the machine vibrates violently at a frequency of 1500 rpm due to an unknown rotating unbalance. the machine is mounted on 4 springs each having a stiffness of 10 kn/m. tom wishes to add an undamped vibration absorber attached by a spring under the machine the machine working frequency ranges between 800 rpm to 2000 rpm and its total mass while loaded is assumed to be 80 kg a) what should be the mass of the absorber added to the machine so that the natural frequency falls outside the working range? b) after a first trial of an absorber using a mass of 35 kg, the amplitude of the oscillation was found to be 10 cm. what is the value of the rotating unbalance? c) using me-3.5 kg.m, find the optimal absorber (by minimizing its mass). what would be the amplitude of the oscillation of the absorber?
Answers: 3
Engineering, 04.07.2019 19:10
Agas is compressed from vi 0.3 m, p 1 bar to of v2 0.1 m3, p2--3 bar. pressure and volume are related linearly during the process. for the gas, find the work, in kj.
Answers: 2
1. The space between two square flat parallel plates is filled with oil. Each side of the
plate is...
Biology, 29.10.2020 19:00
Mathematics, 29.10.2020 19:00
Mathematics, 29.10.2020 19:00
Mathematics, 29.10.2020 19:00
Spanish, 29.10.2020 19:00
Chemistry, 29.10.2020 19:00
Mathematics, 29.10.2020 19:00
Physics, 29.10.2020 19:00
Mathematics, 29.10.2020 19:00
Mathematics, 29.10.2020 19:00