jbriggs444's latest activity

When someone speaks of freedom from censorship as a virtue, I like to think back to Usenet. The lesson learned there was that...

Right. You are asked for velocity. You have determined the [coordinate] acceleration. That is all you need. The various forces required...

The value of the increased lift force at the bottom of the loop is the only net force that induces the airplane to deviate from a level...

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

The professor is still wrong. Let us grant that the intended threshold for pilot unconsciousness is 6g of coordinate acceleration. This...

Loss of consciousness results from proper acceleration, not coordinate acceleration. Proper acceleration is how much the plane's...

Yes.

do I understand correctly: Relativistic mass is just total energy so the energy ratio is 3Ep=Ea and I can manage everything with 2 first...

If you threw a ball to a person ahead of you, would the ball plunge towards their feet. If you threw the ball to someone behind you...

When the question asks for mass, do you understand it to mean relativistic mass or invariant mass? Obviously one can discard the idea...

By convention we usually assume that as the separation distance increases beyond all bounds, the potential energy approaches zero...

Let me be sure I understand. For this calculation we are abstracting away the interaction zone between the falling portion and the...

The static portion has velocity zero. The falling part has velocity ##v##.

A good way to approach infinite quantities in physics is to model them as the limit of finite cases as some parameter is increased...

I believe this problem belongs to class that includes the chain fountain effect. In practice, it seems that when the link at the bottom...