Physics, 27.11.2019 04:31, ayoismeisalex
Aclosed and elevated vertical cylindrical tank with diameter 2.00 m contains water to a depth of 0.800 m. a worker accidentally pokes a circular hole with diameter 0.0200 m in the bottom of the tank. as the water drains from the tank, compressed air above the water in the tank maintains a gauge pressure of 5.00×103pa at the surface of the water. ignore any effects of viscosity. (a) just after the hole is made, what is the speed of the water as it emerges from the hole? what is the ratio of this speed to the efflux speed if the top of the tank is open to the air? (b) how much time does it take for all the water to drain from the tank? what is the ratio of this time to the time it takes for the tank to drain if the top of the tank is open to the air?
Answers: 3
Physics, 22.06.2019 14:50, MoogleCaliS
Nitrogen (n2) undergoes an internally reversible process from 6 bar, 247°c during which pν1.2 = constant. the initial volume is 0.1 m3 and the work for the process is 121.14 kj. assuming ideal gas behavior, and neglecting kinetic and potential energy effects, determine heat transfer, in kj, and the entropy change, in kj/s. show the process on a t-s diagram.
Answers: 2
Physics, 22.06.2019 19:00, Drea1385
The particle p starts from rest at point a at time t = 0 and changes its speed thereafter at a constant rate of 2.8g as it follows the horizontal path shown. determine the magnitude and direction of its total acceleration (a) just before point b, (b) just after point b, and (c) as it passes point c. state your directions relative to the x-axis shown (ccw positive) and choose the angle with the smallest magnitude.
Answers: 1
Aclosed and elevated vertical cylindrical tank with diameter 2.00 m contains water to a depth of 0.8...
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