I am studying coupled oscillations and one of the refrance I'm using says that two modes can have same frequency whereas the other one says it's impossible to have same frequency for two modes. Please help.
Homework Statement
I can't find answers to following questions in the book Concepts of Physics by H. C. Verma.1. The apparent weight of an object increases in an elevator accelerating upward. A peanut seller sells his peanuts using a beam balance in an elevator. Will he gain more if elevator...
I was getting close to end of my board so skipped some steps hence flipped inequality by mistake. d distance and not position or displacement so there's no need to label it as positive or negative. Sorry for not providing the hints and directly stating the answer.
I was using physics forum app on my android phone. When I opened your reply in chrome browser it showed proper notations and not the source code. Thanks for your answer. The independence of q and q dots is the key here (?). It'll take some time to sink in. Thanks again.
I have been studying classical mechanics for a while from Goldstein book and can't go ahead of the following derivation. I understand the method of Lagrange's multipliers for getting extrima of a function subjected to equality constraints but can't understand it's relevance here because in that...
In the derivation given in Goldstein's book it is given
I can't understand from where it comes. It's not at all trivial for me but it's presented as if it's trivial.
What's the difference between something (eg a function or a matrix) becoming zero and it becoming identically zero?
Illustrations will be helpful. Thanks