TSny's latest activity

I came across this YouTube Short from The Action Lab. I thought it was pretty cool that he searched Reddit and PhysicsForums when...

Hello everyone, It's been a long time since I posted anything here on PF. After graduating in 2017 with a bachelors degree in EE, I...

Here, you are dealing only with the "electrical" free energy ##F_{\rm elec}## associated with the work done by the battery. In the term...

Welcome to PF. That's a trick question. If you release a marble from a geostationary satellite, it just continues in the same orbit as...

See post #5. When an object is in contact with a flat surface, the friction force that the surface exerts on the object is parallel to...

Good point.

Sure, I agree that the drawing has mislabeled the positive and negative arcs on the ring, but how does that affect the integrals' setup...

Refer to: Note that ##\phi## is measured from the ##z##-axis. So, all elements of the ring with positive ##z## coordinate should be...

Your mistake comes from differentiating the dipole moment as well, whereas it must be kept constant during the differentiation. To...

Equations of motion for a spinning spheroid [1] where implemented in a Blender Python script. 1. H. K. Moffatt, Y. Shimomura and M...

Yes, good. That's what I get. If @akapm90 is OK with this argument, then they can proceed onward and ignore post #5. Very good point...

@Steve4Physics: Your post made me think of an easier way to see how ##a_y## is related to ##A_x## and ##A_y##. Imagine that the block...

I'm not seeing this. If ##\alpha = 0##, so the upper section of the string remains horizontal, then ##a_y = -A_x##. But this is not...

Even though it starts at rest, we can still consider the configuration after the block has moved some distance. Of course, the block...

The pulley moves with the block ##M##. If the block moves a distance ##S## up the slope, then the pulley moves parallel to the slope...