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While studying fluid mechanics I came across a section which say:If a tube is submerged in water and some part is empty Water rises in a capillary tube say...
Asked on 03/09/2021
2 answerI am curious as to why the position of where I apply a force on an object matter? Like what is is happening at the molecular level where force is...
Asked on 03/09/2021
2 answerI'm confusing with a problem. Consider an ideal inductor with a shorted circuit and no resistance and having a current through it. we know this current is constant while the...
Asked on 03/09/2021
1 answerThe Gravity program I watched brought something really interesting to my awareness. With black-hole Hawking radiation... everything gets sucked into the event horizon... we don't know what happens there... if...
Asked on 03/09/2021 by Shay Maor
1 answerA battery has an Emf 6 Volts. It is completely discharged. It is charged by maintaining a potential difference of 9 Volts across it. If the internal resistance of the...
Asked on 03/09/2021 by user456
4 answerI'm working with a pressure vessel that is cooled to a reasonably cool temperature. Since it is cooled at pressure when the air exits the pressurized system the gas expands...
Asked on 03/09/2021 by Steve Mucci
0 answerI'm having troubles to understand the difference between kinetic energy and potential centrifugal energy in some situations. I make an example where I am confused.A object moves on a rod...
Asked on 03/08/2021 by Gianolepo
2 answerThis image from NASA illustrates drag coefficients for several shapes: It is generally accepted that some variation of the teardrop/airfoil...
Asked on 03/08/2021
3 answerI have been studying from some textbooks and papers about the T-dality topic. In particular for the Buscher rules it seems that they claim that in order to have T-duality...
Asked on 03/08/2021 by Anthonny
1 answerBackgroundAccording to an article from Physics Today, ice is slippery because there is a “liquid or liquid-like layer” on its surface. There are 3 mechanisms that can...
Asked on 03/08/2021
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