Since bodies like planets moving around sun perform uniform circular motion where gravitation provides the necessary centripetal force, so the orbits should be circular for the gravitational force to be central but as we know the paths are not perfectly circular but elliptical. Why this is so?
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Why can't we use fissions products for electricity production ? As far has I know fissions products from current nuclear power plants cr...
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How can we know the order of a Feynman diagram just from the pictorial representation? Is it the number of vertices divided by 2? For exampl...
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As the title says. It is common sense that sharp things cut, but how do they work at the atomical level? Answer For organic matter, such a...
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This image from NASA illustrates drag coefficients for several shapes: It is generally accepted that some variation of the teardrop/airfoil...
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Problem Statement: Imagine a spherical ball is dropped from a height $h$, into a liquid. What is the maximum average height of the displaced...
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In most books (like Cardy's) relations between critical exponents and scaling dimensions are given, for example $$ \alpha = 2-d/y_t, \;\...
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Literature states neutral pion decay by QED cannot occur directly because the pion is uncharged. However, I cannot see why Photons are not a...
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