## PSN-L Email List Message

Subject: Re: questions on spring loaded vertical pendulum
From: "tchannel" tchannel@..............
Date: Sat, 20 Jan 2007 09:26:46 -0700

```Hi Thomas, There is a handy "Spring Calculator.exe" which I found =
helpful. Someone will point it out to you?  I don't have the site.
I found the period to be effected by the amount of pull on the spring, =
that could be "whatever" expands the spring, arm-connection point, =
vertical connection point, mass, angle, etc.  Doing a simple test, to =
measure if my spring was zero length-type, I hung it from a string and =
----- Original Message -----=20
From: Thomas Dick=20
To: psn-l@.................
Sent: Saturday, January 20, 2007 8:29 AM
Subject: questions on spring loaded vertical pendulum

1. If you remove the magnet from the boom -- what is the anticipated =
mass to put on the end of the boom -- or is it dependent on the spring's =
tension.
2. is the period of the instrument affected by the length of the boom, =

Hi Thomas, There is a handy "Spring =
Calculator.exe"=20
which I found helpful. Someone will point it out to you?  I don't =
have the=20
site.
I found the period to be effected by =
the amount of=20
pull on the spring, that could be "whatever" expands the spring, =
arm-connection=20
point, vertical connection point, mass, angle, etc.  Doing a simple =
test,=20
to measure if my spring was zero length-type, I hung it from a string =
Ted

----- Original Message -----
From:=20
Thomas Dick
To: psn-l@..............
Sent: Saturday, January 20, =
2007 8:29=20
AM
Subject: questions on spring =
vertical pendulum

1. If you remove the magnet from the =
boom -- what=20
is the anticipated mass to put on the end of the boom -- or is it =
dependent on=20
the spring's tension.
2. is the period of the instrument =
affected by=20
the length of the boom, size of the base plate,  length of the =
spring or=20
mass
```