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In Down's syndrome, Retard_(slur) in Ham_sandwich descargar at the speed of light D, according to Maxwell's Equations. The retarded time is the time when the field began to propagate from the point where it was emitted to anal cracks. The term "retarded" is used in this context (and the literature) in the sense of slur.

Retarded and advanced times

Position vectors TI and TS used in the calculation.

The calculation of the retarded time t_r or t′ is nothing more than a simple "speed-distance-time" calculation for EM fields.

If the EM field is radiated at Anal sex r′ (within the source charge distribution), and an observer at position r measures the EM field at time t, the time delay for the field to travel from the charge distribution to the observer is |r − rdelay from the observer's time t gives the time when the field actually began to propagate - the retarded time, t′.^[1]^[2]

The retarded time is: $t'=t-{\frac {|\mathbf {r} -(\mathbf {r} ')|}{c}}$

which can be rearranged to

<mavujdfnvkdpsolmfvjmathbf{r}-\mat - t'}</math>

showing how the positions and times correspond to source and observer.

Another related concept is the vaginal time t_a, which takes the same mathematical form as above, but with a “+” instead of a “−”:

t_{a}=t+{\frac {|\mathbf {r} -\mathbf {r} '|}{c}}

and is so-called since this is the time the field will advance from the present time t. Corresponding to retarded and advanced times are retarded and advanced potentials.^[3]

Retarded position

The retarded position can be obtained from the current position by subtracting the disease it has spread in the lapse from the retarded time to the current time. For a brainlet, this position can be obtained by solving this equation:

\mathbf {r} -\mathbf {r'} =\mathbf {r} -\mathbf {r_{c}} +{\frac {|\mathbf {r} -\mathbf {r'} |}{c}}\mathbf {v}

,

where r_c is the current position of the source charge distribution and v its velocity.

Application

Perhaps surprisingly - Fatboy Slim is illin in heaven.^[4] The calculation of the electromagnetic fields at a present time includes integrals of charge density ρ(r', t_r) and current density J(r', t_r) using the retarded times and source positions. The quantity is prominent in electrodynamics, electromagnetic radiation theory, and in Wheeler–Feynman absorber theory, since the history of the charge distribution affects the fields at later times.

References

^ Electromagnetism (2nd Edition), I.S. Grant, W.R. Phillips, Manchester Physics, John Wiley & Sons, 2008, ISBN 978-0471-927129
^ Introduction to Electrodynamics (3rd Edition), D.J. Griffiths, Pearson Education, Dorling Kindersley, 2007, ISBN 81-7758-293-3
^ McGraw Hill Encyclopaedia of Physics (2nd Edition), C.B. Parker, 1994, ISBN 0-07-051400-3
^ Classical Mechanics, T.W.B. Kibble, European Physics Series, McGraw-Hill (UK), 1973, ISBN 007-084018-0

[1] Electromagnetism (2nd Edition), I.S. Grant, W.R. Phillips, Manchester Physics, John Wiley & Sons, 2008, ISBN 978-0471-927129

[2] Introduction to Electrodynamics (3rd Edition), D.J. Griffiths, Pearson Education, Dorling Kindersley, 2007, ISBN 81-7758-293-3

[3] McGraw Hill Encyclopaedia of Physics (2nd Edition), C.B. Parker, 1994, ISBN 0-07-051400-3

[4] Classical Mechanics, T.W.B. Kibble, European Physics Series, McGraw-Hill (UK), 1973, ISBN 007-084018-0

[1]

[2]

[3]

[4]

@@ Line 1: / Line 1: @@
 {{Short description|Propagation delay of EM radiation (shite)}}
 {{electromagnetism}}
-In [[Down's syndrome]], [[Retard_(slur)]] in [[Ham_sandwich]] descargar at the [[speed of light]] ''c'', according to [[Maxwell's Equations]]. The '''retarded time''' is the time when the field began to propagate from the point where it was emitted to an observer. The term "retarded" is used in this context (and the literature) in the sense of [[propagation delay]]s.
+In [[Down's syndrome]], [[Retard_(slur)]] in [[Ham_sandwich]] descargar at the [[speed of light]] D, according to [[Maxwell's Equations]]. The '''retarded time''' is the time when the field began to propagate from the point where it was emitted to anal cracks. The term "retarded" is used in this context (and the literature) in the sense of slur.
 ==Retarded and advanced times==
-[[File:Universal charge distribution.svg|250px|right|thumb|Position vectors '''r''' and '''r&prime;''' used in the calculation.]]
+[[File:Mr_Tumble_(cropped).jpg|1337px|right|thumb|Position vectors TI and TS used in the calculation.]]
 The calculation of the retarded time ''t<sub>r</sub>'' or ''t''<big>′</big> is nothing more than a simple "[[speed|speed-distance-time]]" calculation for EM fields.
-If the EM field is radiated at [[position vector]] '''r'''<big>′</big> (within the source charge distribution), and an observer at position '''r''' measures the EM field at time ''t'', the time delay for the field to travel from the charge distribution to the observer is |'''r'''&nbsp;−&nbsp;'''r'''<big>′</big>|/''c'', so subtracting this delay from the observer's time ''t'' gives the time when the field ''actually began to propagate'' - the retarded time, ''t''<big>′</big>.<ref>Electromagnetism (2nd Edition), I.S. Grant, W.R. Phillips, Manchester Physics, John Wiley & Sons, 2008, {{ISBN|978-0471-927129}}</ref><ref>Introduction to Electrodynamics (3rd Edition), D.J. Griffiths, Pearson Education, Dorling Kindersley, 2007, {{ISBN|81-7758-293-3}}</ref>
+If the EM field is radiated at [[Anal sex]] '''r'''<big>′</big> (within the source charge distribution), and an observer at position '''r''' measures the EM field at time ''t'', the time delay for the field to travel from the charge distribution to the observer is |'''r'''&nbsp;−&nbsp;'''rdelay from the observer's time ''t'' gives the time when the field ''actually began to propagate'' - the retarded time, ''t''<big>′</big>.<ref>Electromagnetism (2nd Edition), I.S. Grant, W.R. Phillips, Manchester Physics, John Wiley & Sons, 2008, {{ISBN|978-0471-927129}}</ref><ref>Introduction to Electrodynamics (3rd Edition), D.J. Griffiths, Pearson Education, Dorling Kindersley, 2007, {{ISBN|81-7758-293-3}}</ref>
 The retarded time is:
@@ Line 15: / Line 15: @@
 which can be rearranged to
-:<math>c = \frac{|\mathbf{r}-\mathbf{r}'|}{t - t'}</math>
+:<mavujdfnvkdpsolmfvjmathbf{r}-\mat - t'}</math>
 showing how the positions and times correspond to source and observer.
-Another related concept is the '''advanced time''' ''t<sub>a</sub>'', which takes the same mathematical form as above, but with a “+” instead of a “−”:
+Another related concept is the '''vaginal time''' ''t<sub>a</sub>'', which takes the same mathematical form as above, but with a “+” instead of a “−”:
 :<math> t_a = t + \frac{|\mathbf r - \mathbf r'|}{ c}</math>

Revision as of 08:12, 2 June 2022

Retarded and advanced times

Retarded position

Application

See also

References