The lagrangian is always phrased as $L(t,q,\dot{q})$.
If you magically knew the equations $q(t)$ and $\dot{q}(t)$, could the Lagrangian ever be written only as a function of time?
Take freefall for example. $$y(t)=y_0 + v_0t -(1/2)gt^2$$ $$\dot{y}(t)=v_0 -gt$$
Can the Lagrangian now be written a...
Despite being presented as one of the fundamental results of Quantum Mechanics in practically every textbook, I realized this morning that I don't understand deeply how Quantum Mechanics predicts the double slit experiment.
The best explanation I have found seems to be closely related to the path...
I know that friction is cause by the electromagnetic force between electrons from 2 contacting surfaces but how come it only applies to physical contact with a solid surface?
According to Einstein's general relativity, massive bodies should cause gravitational redshift.
How accurately has this been measured?
I know that friction is cause by the electromagnetic force between electrons from 2 contacting surfaces but how come it only applies to physical contact with a solid surface?
Backup Room – The h Bar
Backup Room – The h Bar