SiennaTheGr8's latest activity
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SSiennaTheGr8 replied to the thread Undergrad Raising and lowering indices using metric tensor.To be clear, the Kronecker delta is symmetric too.
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SSiennaTheGr8 replied to the thread High School Need tips to understand Relativistic Energy in Special Relativity.You can also derive ##d \gamma = \gamma^3 (\vec \beta \cdot d \vec \beta)## fairly easily and use that to do a change of variables...
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SSiennaTheGr8 reacted to Ibix's post in the thread High School Need tips to understand Relativistic Energy in Special Relativity with
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I think this is the integral you are attempting to compute. If so, I'd do it by inspection. For any integrand with a ##1/f^n(x)## it's... -
SSiennaTheGr8 reacted to Ibix's post in the thread High School Traveling through space at zero km/s with Like.
This is correct, and you will find it in physics textbooks too. This, however, is impossible. If you attempt to construct a frame of...
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SSiennaTheGr8 reacted to PeroK's post in the thread Undergrad Derive the Lorentz transformation in Minkowski four-dimensional spacetime spacetime with Like.
I'm one of the few students, it seems, that finds spacetime diagrams confusing. The problem is that the diagram you have drawn is in...