For your weekend pleasure, here are two notes;
from a hobby casting list, and a mech.eng
newsgroup respectively.
Enjoy!
Brian.
p.s. I don't know the answers...
(1) From: "Kenneth Mayer" <mayerk@surfree.com>
addressed to this list: <hobbicast@yahoogroups.com>
Using an 18" length of copper tubing capped at
one end and pressure gauge in the other, filled
with fuel oil, the heat from my hands was enough
to generate over 200 psi in the pipe.
[My question: estimate a plausible diameter
of the pipe]
(2) From Craig Joyce naughty_sonny@yahoo.com
addressed to sci.engr.mech ng.
There is a prism (triangular solid) of mass m1 with
base angle alpha.
A body of mass m2 is released from rest on the incline
of m1. We have to find the horizontal acceleration of m1.
All surfaces have negligible friction. This is a
standard problem with the twist that m1 is not fixed.
I am drawing a crude diagram to illustrate the problem
statement.
[I set this note to Courier New fixed pitch to
preserve the ascii art below.]
/\ /|
/m / |
/ 2/ |
\/ |
/ |
/ |
/ m1 |
/_______|
ref: "a simple mechanics problem from I.E.Irodov's
'Problems in General Physics' (1.81)"
Brian Whatcott
Altus OK Eureka!
This posting is the position of the writer, not that of SUNY-BSC, NAU or the AAPT.