>Was the class she was taking using as a text _University
>Physics_ by Sears and Zemansky (and I think another co-author
>on the later editions, as one of the two original authors is no
>longer alive)? That's a problem at the end of chapter 4, though
>IIRC it is a generic physic student that has jumped after
>flunking a test rather than Lois who must be saved.
>
>
>-- Ronn! :)
No it was on the test. It was around the time of Superman I. The
regular teacher was out and the sub thought word problems were
the cat's meow. My cousin didn't complain, just waited for the
regular teacher to come back who gave him a non-grade on the test.
Here's a problem a national radio show was talking about: If you
heat up a baseball or golf ball before striking it, it will go
farther than a ball at air temperature. The reason (and this was
from 20 hours ago so memory is failing): as any ball goes through
the air, it heats up the air to a viscous state, i.e. turning the
air into liquid, making the ball slippery, thus the ball goes
through air with less resistance. If the ball is heated the air
will get heated that much quicker.
I thought this was bullshit, like the reason an ice skater can
skate smoothly was that the pressure from the blade was turning
the ice into water at the point of contact. This was proven false
or at least shown that it can't happen IIRC.
The radio show also said baseballs travel farther in warm air
then cold because the ball was warmer, not that the cold air is
denser.
Kevin Tarr
Trump high, lead low
