haruspex's latest activity

I feel it’s more likely a lack of peer review. A committee might have done better.

When writing "ln(x)” in LaTeX, you can make it clearer with "\ln": ##\ln(x)## v. ##ln(x)##. This avoids confusion when ##l## or ##n##...

It's intriguing that two authoritative-looking sources provide different answers. Maybe somebody at oswaal360 realised the CBSE answer...

I must be misinterpreting what you are saying. As I read the above, you are saying that if in one frame they are both moving at...

I do not understand. If they move with the same velocity in one frame they must move at the same velocity in all frames. Besides, the...

I'd forgotten this puzzled me in the past: whether there is a magnetic field from a current must depend on the frame of reference...

Well, it doesn’t say the moth is flying directly towards the bat. Perhaps it was supposed to tell you it was flying at an angle of 60°...

Not so.

Yes.

Not quite, and this makes the question quite tricky. It is (minus) the ratio of the relative velocity components normal to the plane of...

As stated in post #1, @palaphys knows how to solve the problem. The question being asked of the forum is why the suggested alternative...

Not quite that simple. When you put your finger on the top the air pressure is still atmospheric: same number of molecules at the same...

Then I confirm your results. What would the net flux be if they were both +q and equidistant on opposite sides? (Consider symmetry.)...

A free body diagram shows the forces on a single rigid body. Here you have a linkage, so you need an FBD for each moving part. This...

Do you mean, you don’t know if it is the smallest mass that would cause them to slide up? Why does that matter? What allows you to...