anuttarasammyak's latest activity

No, not the same in a exact sense. My post #16 based on your figure deals it. Your case can be interpreted that we pull the horizontal...

|D|,|F| > |W|. The weight gravity generates larger y force. F is downward, however red force on screw is upward.”Only horizontal...

I mean couple not moment. Thanks to #6 in usual case Blue forces couple and red forces couple cancel. My #16 confirms it. In the...

Is the net couple zero in this system? The couple produced by the two forces in the x-direction is zero. However, it seems that the...

In your examples the connections must transmit a torque. In the solution given by @kuruman they are assumed to be torque free. Based on...

Thanks. My thread examples were not appropriate. Net zero inhomogeneous x force act at the contact area of the remaining bar so that it...

$$F_y=w-D_y$$ it can be negative, zero or positive. Some example cases $$F_y=w > 0,\ \ D_y=0$$ $$F_y=0,\ \ D_y=w$$ $$F_y<0,\ \...

All external forces should be considered at the points where they act on the body. D is acting on point Q in the figure you show. But...

Pursuiting the calculation I showed $$\hat{L}_z=-i \hbar \frac{\partial}{\partial \phi}$$ I am not sure whether it is consistent with...

We are tempted to say such and such momentum at such and such place, but QM uncertainty relation or commutation relation...

Inserting $$\mathbf{p}=-i\hbar \nabla$$ in formula of L, you will prove that L has no r dependence.

We may take the problem as a study subject of statistics, sending a questionnaire to the captains: a. How old are you? b. Have you...

Salt matter condense up from 1% to 2% (doubles) by more than 50% water evaporation seems to be reasonable.

But the point of the video is to teach us how to use the lambert function to solve a problem not how to intelligently guess the answer...

$$g_{\mu\nu}g^{\nu\rho}=g_{\mu}^{\ \ \ \rho}$$ $$g_{\mu\nu}g^{\rho\nu}=g_{\mu}^{\rho}$$ $$g_{\nu\mu}g^{\rho\nu}=g_{\ \ \ \mu}^{\rho}$$...