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For electrostatic fields, we write the energy density using $$u = frac12epsilon_o E^2$$ is this formula also valid for a non-conservative electric field produced by changing magnetic field? Or,...
Asked on 05/25/2021
2 answerI have been told that potential in an electric circuit is defined as the work done in bringing a unit test positive charge to that point inside the circuit. Thus...
Asked on 05/25/2021 by LiQuid_ NitRoGeN
3 answerWhen dealing with an undamped MDOF dynamic system, one can find the natural frequency (eigenvalue) and corresponding modeshape-vector (eigenvector) for mode $n$ by solving the eigenvalue problem: $$...
Asked on 05/25/2021 by MMU_SDU
0 answerFor metals, the heat capacity has two contributions. The phonon contribution is proportional to $T^3$, while the electron contribution is proportional to $T$, as $T$ goes to...
Asked on 05/25/2021
2 answerIt is understood till now that nothing is faster than speed of light and we also know that even light cannot come out of black hole(that’s why the name black)....
Asked on 05/25/2021 by Ayush Bhardwaj
1 answerI read in a newspaper that we can't predict the trajectory of a hypersonic missile and that this property renders the missile undetectable. However, what I could not understand is...
Asked on 05/25/2021
2 answerI read Lee Smolin's book "The trouble with physics" and the book says that the finiteness of string theory ( or string pertubative theory) is by no means a...
Asked on 05/25/2021
2 answerI have done this experiment to find out the equivalent focal length of a combination of 2 convex lenses of slightly different focal length and have applied the formula for...
Asked on 05/25/2021 by Rinchen Chosdol
1 answerDiag. For ques: In that L shaped wedge of 4kg a block of 1kg is released from top... We give...
Asked on 05/25/2021 by Faham J
1 answerAccording to this Website Nylon has a density between 1.11 to 1.18 g/cm3. Air on see level has a density of 1.225 g/cm3. So why does nylon...
Asked on 05/25/2021 by Walter Bislin
2 answerGet help from others!
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