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From: Androcles on 4 Jan 2010 22:55 "PD" <thedraperfamily(a)gmail.com> wrote in message news:19831949-f062-4f3b-8948-f82a7050b945(a)35g2000yqa.googlegroups.com... On Jan 4, 2:08 pm, ..@..(Henry Wilson DSc) wrote: > On Mon, 4 Jan 2010 07:53:30 -0800 (PST), PD <thedraperfam...(a)gmail.com> > wrote: > >On Jan 2, 1:12 pm, ..@..(Henry Wilson DSc) wrote: > >> On Sat, 2 Jan 2010 10:21:39 -0800 (PST), PD <thedraperfam...(a)gmail.com> > >> wrote: > >> >On Jan 1, 2:16 pm, ..@..(Henry Wilson DSc) wrote: > >> >> So why are some things frame dependent and not others? > > >> >> They must contain L/T or (L/T)^2 > > >> >There are a number of things that don't, like electric field. So > >> >obviously, it's not true that they "must". > > >> What are the dimensions of electric field? > > >Newtons per coulomb. Why is this hard? > > What are hte dimensions of a coulomb? Ampere-second. The ampere is a fundamental unit, like meters and seconds. You didn't know that, I take it. ======================================== Oh my... The ampere is coulombs/second, a ratio. The coulomb is the fundamental unit, a capacitor can hold it's charge independent of time. Some computer memory chips depend on it. Phuckwit Duck doesn't know that. A Capacotir Prives Phuckwot Duck Wring.
From: PD on 5 Jan 2010 10:37 On Jan 4, 9:55 pm, "Androcles" <Headmas...(a)Hogwarts.physics_q> wrote: > "PD" <thedraperfam...(a)gmail.com> wrote in message > > news:19831949-f062-4f3b-8948-f82a7050b945(a)35g2000yqa.googlegroups.com... > On Jan 4, 2:08 pm, ..@..(Henry Wilson DSc) wrote: > > > > > On Mon, 4 Jan 2010 07:53:30 -0800 (PST), PD <thedraperfam...(a)gmail.com> > > wrote: > > >On Jan 2, 1:12 pm, ..@..(Henry Wilson DSc) wrote: > > >> On Sat, 2 Jan 2010 10:21:39 -0800 (PST), PD <thedraperfam...(a)gmail.com> > > >> wrote: > > >> >On Jan 1, 2:16 pm, ..@..(Henry Wilson DSc) wrote: > > >> >> So why are some things frame dependent and not others? > > > >> >> They must contain L/T or (L/T)^2 > > > >> >There are a number of things that don't, like electric field. So > > >> >obviously, it's not true that they "must". > > > >> What are the dimensions of electric field? > > > >Newtons per coulomb. Why is this hard? > > > What are hte dimensions of a coulomb? > > Ampere-second. The ampere is a fundamental unit, like meters and > seconds. > You didn't know that, I take it. > > ======================================== > Oh my... > The ampere is coulombs/second, a ratio. Try again. You can check NIST if you like. http://www.unc.edu/~rowlett/units/sifundam.html > The coulomb is the fundamental unit, a capacitor can hold > it's charge independent of time. Some computer memory chips > depend on it. > Phuckwit Duck doesn't know that. > A Capacotir Prives Phuckwot Duck Wring.
From: Androcles on 5 Jan 2010 11:17 "PD" <thedraperfamily(a)gmail.com> wrote in message news:ea374eda-3204-46d8-abcc-f96251b9562e(a)e37g2000yqn.googlegroups.com... On Jan 4, 9:55 pm, "Androcles" <Headmas...(a)Hogwarts.physics_q> wrote: > "PD" <thedraperfam...(a)gmail.com> wrote in message > > news:19831949-f062-4f3b-8948-f82a7050b945(a)35g2000yqa.googlegroups.com... > On Jan 4, 2:08 pm, ..@..(Henry Wilson DSc) wrote: > > > > > On Mon, 4 Jan 2010 07:53:30 -0800 (PST), PD <thedraperfam...(a)gmail.com> > > wrote: > > >On Jan 2, 1:12 pm, ..@..(Henry Wilson DSc) wrote: > > >> On Sat, 2 Jan 2010 10:21:39 -0800 (PST), PD > > >> <thedraperfam...(a)gmail.com> > > >> wrote: > > >> >On Jan 1, 2:16 pm, ..@..(Henry Wilson DSc) wrote: > > >> >> So why are some things frame dependent and not others? > > > >> >> They must contain L/T or (L/T)^2 > > > >> >There are a number of things that don't, like electric field. So > > >> >obviously, it's not true that they "must". > > > >> What are the dimensions of electric field? > > > >Newtons per coulomb. Why is this hard? > > > What are hte dimensions of a coulomb? > > Ampere-second. The ampere is a fundamental unit, like meters and > seconds. > You didn't know that, I take it. > > ======================================== > Oh my... > The ampere is coulombs/second, a ratio. Try again. You can check NIST if you like. http://www.unc.edu/~rowlett/units/sifundam.html ========================================= Oh my... " In principle, the coulomb could be defined in terms of the charge of an electron or elementary charge... A coulomb is then equal to exactly 6.241 509 629 152 65E+18 elementary charges. " http://en.wikipedia.org/wiki/Coulomb Note: No seconds needed. By your illogic velocity is a fundamental unit, like amperes and seconds. But you would know that, I take it. I'm glad I don't know what you know or I'd be calling myself a fuckin' imbecile. > The coulomb is the fundamental unit, a capacitor can hold > it's charge independent of time. Some computer memory chips > depend on it. > Phuckwit Duck doesn't know that. > A Capacotir Prives Phuckwot Duck Wring. Try again, a capacitor proves Phuckwit Duck WRONG.
From: Inertial on 5 Jan 2010 17:35 "PD" <thedraperfamily(a)gmail.com> wrote in message news:ea374eda-3204-46d8-abcc-f96251b9562e(a)e37g2000yqn.googlegroups.com... > On Jan 4, 9:55 pm, "Androcles" <Headmas...(a)Hogwarts.physics_q> wrote: >> "PD" <thedraperfam...(a)gmail.com> wrote in message >> >> news:19831949-f062-4f3b-8948-f82a7050b945(a)35g2000yqa.googlegroups.com... >> On Jan 4, 2:08 pm, ..@..(Henry Wilson DSc) wrote: >> >> >> >> > On Mon, 4 Jan 2010 07:53:30 -0800 (PST), PD <thedraperfam...(a)gmail.com> >> > wrote: >> > >On Jan 2, 1:12 pm, ..@..(Henry Wilson DSc) wrote: >> > >> On Sat, 2 Jan 2010 10:21:39 -0800 (PST), PD >> > >> <thedraperfam...(a)gmail.com> >> > >> wrote: >> > >> >On Jan 1, 2:16 pm, ..@..(Henry Wilson DSc) wrote: >> > >> >> So why are some things frame dependent and not others? >> >> > >> >> They must contain L/T or (L/T)^2 >> >> > >> >There are a number of things that don't, like electric field. So >> > >> >obviously, it's not true that they "must". >> >> > >> What are the dimensions of electric field? >> >> > >Newtons per coulomb. Why is this hard? >> >> > What are hte dimensions of a coulomb? >> >> Ampere-second. The ampere is a fundamental unit, like meters and >> seconds. >> You didn't know that, I take it. >> >> ======================================== >> Oh my... >> The ampere is coulombs/second, a ratio. > > Try again. You can check NIST if you like. > http://www.unc.edu/~rowlett/units/sifundam.html > >> The coulomb is the fundamental unit, The Ampere is the fundamental unit in SI, the Coulomb is derived from it. See http://physics.nist.gov/cuu/Units/units.html In different systems, that is not the case .. eg in Planck units, charge is a basic unit. So it really is pretty much an arbitrary (but hopefully sensible) choice of the system to decide which units are basic and which derived.
From: PD on 6 Jan 2010 15:07
On Jan 5, 4:35 pm, "Inertial" <relativ...(a)rest.com> wrote: > "PD" <thedraperfam...(a)gmail.com> wrote in message > > news:ea374eda-3204-46d8-abcc-f96251b9562e(a)e37g2000yqn.googlegroups.com... > > > > > On Jan 4, 9:55 pm, "Androcles" <Headmas...(a)Hogwarts.physics_q> wrote: > >> "PD" <thedraperfam...(a)gmail.com> wrote in message > > >>news:19831949-f062-4f3b-8948-f82a7050b945(a)35g2000yqa.googlegroups.com.... > >> On Jan 4, 2:08 pm, ..@..(Henry Wilson DSc) wrote: > > >> > On Mon, 4 Jan 2010 07:53:30 -0800 (PST), PD <thedraperfam...(a)gmail.com> > >> > wrote: > >> > >On Jan 2, 1:12 pm, ..@..(Henry Wilson DSc) wrote: > >> > >> On Sat, 2 Jan 2010 10:21:39 -0800 (PST), PD > >> > >> <thedraperfam...(a)gmail.com> > >> > >> wrote: > >> > >> >On Jan 1, 2:16 pm, ..@..(Henry Wilson DSc) wrote: > >> > >> >> So why are some things frame dependent and not others? > > >> > >> >> They must contain L/T or (L/T)^2 > > >> > >> >There are a number of things that don't, like electric field. So > >> > >> >obviously, it's not true that they "must". > > >> > >> What are the dimensions of electric field? > > >> > >Newtons per coulomb. Why is this hard? > > >> > What are hte dimensions of a coulomb? > > >> Ampere-second. The ampere is a fundamental unit, like meters and > >> seconds. > >> You didn't know that, I take it. > > >> ======================================== > >> Oh my... > >> The ampere is coulombs/second, a ratio. > > > Try again. You can check NIST if you like. > >http://www.unc.edu/~rowlett/units/sifundam.html > > >> The coulomb is the fundamental unit, > > The Ampere is the fundamental unit in SI, the Coulomb is derived from it. > > Seehttp://physics.nist.gov/cuu/Units/units.html > > In different systems, that is not the case .. eg in Planck units, charge is > a basic unit. > > So it really is pretty much an arbitrary (but hopefully sensible) choice of > the system to decide which units are basic and which derived. That's true. |