Re: [Phys-l] Weightless (running around in circles)

["Bob LaMontagne" <rlamont@postoffice.providence.edu>]

Even more basic, what is the weight of a frog floating just under the
surface of a pond. If you remember "Bob's Rules" that I set up a few hundred
postings ago, the weight is what a scale glued to the frog's feet would
read. 

Since the scale probably won't float, it might actually give a negative
reading, depending on its construction. Those on the list who insist on
using weight as mg would then have to attribute a negative mass to the frog
- sort of an "anti-frog". If this anti-frog attempted to mate with a regular
frog that did not have a scale glued to its feet (and hence has positive
mass) we could have a great new energy supply from the resulting
anihilation. 

Bob at PC

> -----Original Message-----
> From: phys-l-bounces@carnot.physics.buffalo.edu [mailto:phys-l-
> bounces@carnot.physics.buffalo.edu] On Behalf Of Robert Cohen
> Sent: Friday, November 24, 2006 11:28 AM
> To: Forum for Physics Educators
> Subject: Re: [Phys-l] Weightless (running around in circles)
>
> What is the weight of a frog that is "floating" in a
> magnetic/gravitational field?
> <http://www.hfml.ru.nl/froglev.html>
>
> If the frog was holding an accelerometer, what would the meter read?