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Groups > sci.physics > #868942
| From | Sylvia Else <sylvia@email.invalid> |
|---|---|
| Newsgroups | sci.physics |
| Subject | Re: Kinetic Energy formula check - a series of short burn rockets, and see how the velocity adds up. |
| Date | 2023-01-30 22:57 +1100 |
| Message-ID | <k3ppksFtlmjU1@mid.individual.net> (permalink) |
| References | <tpe2q8$3qef8$1@dont-email.me> <k3ivudFrnpiU3@mid.individual.net> <116d16b5-7ddb-4857-8665-6cea22369b73n@googlegroups.com> |
On 30-Jan-23 5:50 am, James McGinn wrote: > On Friday, January 27, 2023 at 2:01:56 PM UTC-8, Sylvia Else wrote: >> On 08-Jan-23 8:36 pm, Dave wrote: >>> Kinetic Energy formula check - a series of short burn rockets, and see >>> how the velocity adds up. >> During a rocket burn there is a frame dependent split between the energy >> ending up the exhaust and the thing being propelled. So trying to >> analyse kinetic energy by looking at rocket burns will get you nowhere. >> >> Sylvia. > > There is no such thing as a frame of reference, Sylvia. IOW, frames do not have causal efficacy in reality > > You learned physics from a hippy. > > James McGinn / Genius If you're on a moving train with me, and your face happens to collide with my fist, it won't do you much harm (despite my best efforts). Stick your head out of the window, and have your face collide with the first of someone standing on a station platform, and you'll quickly realise that frames of reference affect how you measure things. Sylvia.
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Kinetic Energy formula check - a series of short burn rockets, and see how the velocity adds up. Dave <dwickford@yahoo.com> - 2023-01-08 09:36 +0000
Re: Kinetic Energy formula check - a series of short burn rockets, and see how the velocity adds up. Dave <dwickford@yahoo.com> - 2023-01-08 10:13 +0000
Re: Kinetic Energy formula check - a series of short burn rockets, and see how the velocity adds up. Jim Pennino <jimp@gonzo.specsol.net> - 2023-01-08 08:16 -0800
Re: Kinetic Energy formula check - a series of short burn rockets, and see how the velocity adds up. Thomas Heger <ttt_heg@web.de> - 2023-01-09 09:07 +0100
Re: Kinetic Energy formula check - a series of short burn rockets, and see how the velocity adds up. Joe <joe@jretrading.com> - 2023-01-09 14:13 +0000
Re: Kinetic Energy formula check - a series of short burn rockets, and see how the velocity adds up. Thomas Heger <ttt_heg@web.de> - 2023-01-11 10:42 +0100
Re: Kinetic Energy formula check - a series of short burn rockets, and see how the velocity adds up. Thomas Heger <ttt_heg@web.de> - 2023-01-11 11:22 +0100
Re: Kinetic Energy formula check - a series of short burn rockets, and see how the velocity adds up. Thomas Heger <ttt_heg@web.de> - 2023-01-12 08:31 +0100
Re: Kinetic Energy formula check - a series of short burn rockets, and see how the velocity adds up. Evangelista Barzetti <magm@hyojmkib.vi> - 2023-01-12 16:45 +0000
Re: Kinetic Energy formula check - a series of short burn rockets, and see how the velocity adds up. Otto Fiscella <tfit@tiselelc.it> - 2023-01-12 16:51 +0000
Re: Kinetic Energy formula check - a series of short burn rockets, and see how the velocity adds up. Thomas Heger <ttt_heg@web.de> - 2023-01-13 08:23 +0100
Re: Kinetic Energy formula check - a series of short burn rockets, and see how the velocity adds up. Tom Roberts <tjoberts137@sbcglobal.net> - 2023-01-13 20:24 -0600
Re: Kinetic Energy formula check - a series of short burn rockets, and see how the velocity adds up. Thomas Heger <ttt_heg@web.de> - 2023-01-14 10:00 +0100
Re: Kinetic Energy formula check - a series of short burn rockets, and see how the velocity adds up. Faustino Biondo <uinn@bfotboia.nt> - 2023-01-25 19:19 +0000
Re: Kinetic Energy formula check - a series of short burn rockets, and see how the velocity adds up. Thomas Heger <ttt_heg@web.de> - 2023-01-26 09:53 +0100
Re: Kinetic Energy formula check - a series of short burn rockets, and see how the velocity adds up. Baldomero De filippis <ppbo@ibsldimp.sn> - 2023-01-26 21:36 +0000
Re: Kinetic Energy formula check - a series of short burn rockets, and see how the velocity adds up. Baldomero De filippis <ppbo@ibsldimp.sn> - 2023-01-26 22:20 +0000
Re: Kinetic Energy formula check - a series of short burn rockets, and see how the velocity adds up. Thomas Heger <ttt_heg@web.de> - 2023-01-27 08:08 +0100
Re: Kinetic Energy formula check - a series of short burn rockets, and see how the velocity adds up. Volney <volney@invalid.invalid> - 2023-01-27 20:23 -0500
Re: Kinetic Energy formula check - a series of short burn rockets, and see how the velocity adds up. Baldomero De filippis <ppbo@ibsldimp.sn> - 2023-01-26 22:34 +0000
Re: Kinetic Energy formula check - a series of short burn rockets, and see how the velocity adds up. De filippis <ppbo@ibsldimp.snBaldomero> - 2023-01-27 21:30 +0000
Re: Kinetic Energy formula check - a series of short burn rockets, and see how the velocity adds up. Y A <angel0000000010000000000000@gmail.com> - 2023-01-09 06:15 -0800
Re: Kinetic Energy formula check - a series of short burn rockets, and see how the velocity adds up. Sylvia Else <sylvia@email.invalid> - 2023-01-28 09:01 +1100
Re: Kinetic Energy formula check - a series of short burn rockets, and see how the velocity adds up. James McGinn <jimmcginn9@gmail.com> - 2023-01-29 10:50 -0800
Re: Kinetic Energy formula check - a series of short burn rockets, and see how the velocity adds up. Jim Pennino <jimp@gonzo.specsol.net> - 2023-01-29 11:05 -0800
Re: Kinetic Energy formula check - a series of short burn rockets, and see how the velocity adds up. Sylvia Else <sylvia@email.invalid> - 2023-01-30 22:57 +1100
Re: Kinetic Energy formula check - a series of short burn rockets, and see how the velocity adds up. Arindam Banerjee <banerjeeadda1234@gmail.com> - 2023-01-27 23:25 -0800
Re: Kinetic Energy formula check - a series of short burn rockets, and see how the velocity adds up. Jim Pennino <jimp@gonzo.specsol.net> - 2023-01-28 06:37 -0800
Re: Kinetic Energy formula check - a series of short burn rockets, and see how the velocity adds up. Arindam Banerjee <banerjeeadda1234@gmail.com> - 2023-01-29 07:05 -0800
Re: Kinetic Energy formula check - a series of short burn rockets, and see how the velocity adds up. Jim Pennino <jimp@gonzo.specsol.net> - 2023-01-29 07:50 -0800
Re: Kinetic Energy formula check - a series of short burn rockets, and see how the velocity adds up. Arindam Banerjee <banerjeeadda1234@gmail.com> - 2023-01-29 23:10 -0800
Re: Kinetic Energy formula check - a series of short burn rockets, and see how the velocity adds up. Jim Pennino <jimp@gonzo.specsol.net> - 2023-01-30 05:57 -0800
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