haruspex's latest activity

Have you quoted that correctly? When it contacts the spring, the spring is relaxed, so that is the equilibrium position. Does it...

That really does not help much by itself. Please take the trouble to post the working as well, typing the equations in, preferably...

You are entitled to know why. Is it possible to reply to the warning?

Yes, I do realise that. The purpose of my post was to challenge the statement I quoted in post #12 in a way that might convince the...

Centripetal acceleration is the component of acceleration that is normal to the velocity. If the plane is flying level, its lift is g...

I'll say it again more strongly. The only reliable way to handle an idealisation is as the limit of realistic versions. When there is...

"An infinite mass is placed on each side of a beam balance. By symmetry, they balance." In the real world, nothing is perfectly...

And the one knows what it says anyway, which helps.

I used to think that way, but then along came virtual particles. Those many philosophers who had been unhappy with forces magically...

Which is still illegible.

I am reminded of a bogus calculation by Australian politician Greg Hunt...

A vertical stick in the ground would have been good enough for Eratosthenes. Need a plumb line, though. The context is unclear. Are...

According to AI Overview Evaluation:The resulting integral ##\int\sqrt{1+cosh^2(x)}dx## does not have a simple elementary closed-form...

If we conclude ##x=a## (where a is well defined) then we necessarily mean that it is the only value of x that satisfies the conditions...

Right, which is why it is a fallacy to claim it equals zero. It is an axiom that if x=a and x=b then a=b. That is what would be implied...