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  1. Repetit

    Quicky on (div)B

    To answer that question you would need to rewrite Div B into an integral using gauss' law. The integral you get is the magnetic flux through a closed surface, and this then implies that the magnetic flux through any closed surface is always equal to zero. In other words, there is always a...
  2. Repetit

    Bernouill's Equation Problem

    If the total liquid volume is V the emptying time is V/Q where Q is the volume flow rate out of the tube.
  3. Repetit

    Bernouill's Equation Problem

    If you have determined the speed of the liquid when it comes out of the tube and you know the cross sectional area of the outlet you can determine the volume flowrate out of the tube (q1*A0). Then you know how much volume of liquid exits the tube per second and you can use this information to...
  4. Repetit

    Really dumb question

    Is this true? I mean, if we imagine the solar cell being at a higher temperature than the surface of the sun (I know this is impossible for various reasons, but theoretically speaking) it would still receive radiation from the sun and convert this radiation to electric energy wouldn't it?
  5. Repetit

    Really dumb question

    Why would that be a problem? The sun is a black body (approximately) and that obviously works just fine with solar cells.
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