Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > sci.physics > #610672

Re: Calculating G

From Sylvia Else <sylvia@not.at.this.address>
Newsgroups sci.physics
Subject Re: Calculating G
Date 2016-12-29 17:21 +1100
Message-ID <ecjobeFn4dqU1@mid.individual.net> (permalink)
References <adbb9ff0-c60d-49d8-bb55-b114c60dc8c0@googlegroups.com>

Show all headers | View raw

On 29/12/2016 1:13 AM, Peter Riedt wrote:
> Calculating G
>
> The constant G was anticipated by Newton but first accurately determined in the laboratory by Henry Cavendish in 1798. It has the value G=6.674E-11m3kg−1s−2 (cubic meters per kilogram second squared).
>
> G can be derived from elements of a star by the formula G=gstar*rstar^2/Mstar
>
> 	  gstar	   rstar	   Mstar	    G	
> Sun	 273.97	696,000,000	 1.99E+30	6.674E-11	
> ACa	 200.18	853,992,000	 2.19E+30	6.674E-11	
> ACb	 332.10	602,040,000	 1.80E+30	6.674E-11	
> AC c	1695.00	 98,136,000	 2.45E+29	6.674E-11	
>
> gstar = surface acceleration in m/sec
> rstar = radius in m
> Mstar = mass in kg

How are you going to get the mass and surface acceleration of the star?

Sylvia.

Back to sci.physics | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread

Thread

Calculating G Peter Riedt <riedt1@yahoo.co.uk> - 2016-12-28 06:13 -0800
  Re: Calculating G Poutnik <poutnik4nntp@gmail.com> - 2016-12-28 15:40 +0100
    Re: Calculating G Poutnik <poutnik4nntp@gmail.com> - 2016-12-28 15:41 +0100
    Re: Calculating G Peter Riedt <riedt1@yahoo.co.uk> - 2016-12-28 22:10 -0800
      Re: Calculating G "hanson" <hanson@quick.net> - 2016-12-28 22:29 -0800
      Re: Calculating G Poutnik <poutnik4nntp@gmail.com> - 2016-12-29 08:07 +0100
        Re: Calculating G Peter Riedt <riedt1@yahoo.co.uk> - 2016-12-29 16:53 -0800
  Re: Calculating G Alan Folmsbee <omnilobe@gmail.com> - 2016-12-28 09:27 -0800
  Re: Calculating G Sylvia Else <sylvia@not.at.this.address> - 2016-12-29 17:21 +1100
    Re: Calculating G Peter Riedt <riedt1@yahoo.co.uk> - 2016-12-29 04:21 -0800
      Re: Calculating G Wally W. <ww84wa@aim.com> - 2016-12-29 09:11 -0500
        Re: Calculating G "hanson" <hanson@quick.net> - 2016-12-29 06:34 -0800
          Re: Calculating G noTthaTguY <abu.kuanysh05@gmail.com> - 2016-12-29 15:40 -0800
          Re: Calculating G Peter Riedt <riedt1@yahoo.co.uk> - 2016-12-29 16:52 -0800
        Re: Calculating G Peter Riedt <riedt1@yahoo.co.uk> - 2016-12-29 16:59 -0800
          Re: Calculating G Odd Bodkin <bodkinodd@gmail.com> - 2017-01-03 12:19 -0600
            Re: Calculating G noTthaTguY <abu.kuanysh05@gmail.com> - 2017-01-03 12:43 -0800
      Re: Calculating G Sylvia Else <sylvia@not.at.this.address> - 2016-12-30 13:22 +1100
        Re: Calculating G Peter Riedt <riedt1@yahoo.co.uk> - 2016-12-30 01:11 -0800
          Re: Calculating G Sylvia Else <sylvia@not.at.this.address> - 2016-12-30 21:43 +1100
            Re: Calculating G "hanson" <hanson@quick.net> - 2016-12-30 06:48 -0800
            Re: Calculating G Peter Riedt <riedt1@yahoo.co.uk> - 2016-12-30 14:43 -0800
              Re: Calculating G Sylvia Else <sylvia@not.at.this.address> - 2016-12-31 11:35 +1100
                Re: Calculating G Peter Riedt <riedt1@yahoo.co.uk> - 2016-12-30 17:06 -0800
                Re: Calculating G Sylvia Else <sylvia@not.at.this.address> - 2016-12-31 12:40 +1100
                Re: Calculating G Peter Riedt <riedt1@yahoo.co.uk> - 2016-12-30 23:22 -0800
                Re: Calculating G Sylvia Else <sylvia@not.at.this.address> - 2016-12-31 20:28 +1100
                Re: Calculating G "reber g=emc^2" <herbertglazier0@gmail.com> - 2016-12-31 11:07 -0800
                Re: Calculating G "hanson" <hanson@quick.net> - 2016-12-31 11:16 -0800
                Re: Calculating G "reber g=emc^2" <herbertglazier0@gmail.com> - 2016-12-31 13:22 -0800
                Re: Calculating G "hanson" <hanson@quick.net> - 2016-12-31 15:36 -0800
                Re: Calculating G Sylvia Else <sylvia@not.at.this.address> - 2017-01-01 11:49 +1100
              Re: Calculating G Odd Bodkin <bodkinodd@gmail.com> - 2017-01-03 15:09 -0600
                Re: Calculating G Peter Riedt <riedt1@yahoo.co.uk> - 2017-01-03 16:22 -0800
                Re: Calculating G noTthaTguY <abu.kuanysh05@gmail.com> - 2017-01-03 16:57 -0800
                Re: Calculating G Odd Bodkin <bodkinodd@gmail.com> - 2017-01-04 10:22 -0600
                Re: Calculating G Peter Riedt <riedt1@yahoo.co.uk> - 2017-01-05 16:02 -0800
                Re: Calculating G Odd Bodkin <bodkinodd@gmail.com> - 2017-01-06 07:09 -0600

csiph-web