Thanks - That will teach me not to set GM = 1 before I think the problem through :-(
Bob at PC
________________________________
From: phys-l-bounces@carnot.physics.buffalo.edu on behalf of Jack Uretsky
Sent: Tue 1/22/2008 2:10 PM
To: Forum for Physics Educators
Subject: Re: [Phys-l] New gravitational constant
But how well do you know the mass of the planet? The Cavendish experiment
is sometimes called "weighing the earth"
Regards,
Jack