-THE [JOULE SECOND]-

-as of [21 SEPTEMBER 2024]

.

*abbreviated ‘J⋅s’ or ‘J s’*

.

*the ‘joule-second is the product of…*

*THE JOULE*
(an ‘SI-derived unit’)

.

*THE SECOND*
(an ‘SI base unit’)

.

*the ‘unit’ used to calculate ‘planck’s constant’*

.

*the ‘joule-second’ is a ‘unit’ of ‘action’ (or ‘angular momentum’)*

.

The joule-second also appears in quantum mechanics within the definition of Planck’s constant

Angular momentum is the product of an object’s moment of inertia,

in units of kg⋅m2

and its angular velocity in units of rad⋅s−1.

This product of moment of inertia and angular velocity yields kg⋅m2⋅s−1 or the joule-second.

Planck’s constant represents the energy of a wave, in units of joule, divided by the frequency of that wave, in units of s−1.

This quotient of energy and frequency also yields the joule-second (J⋅s)

.

Base units

In SI base units the joule-second becomes kilogram-meter squared-per second or kg⋅m2⋅s−1.

Dimensional Analysis of the joule-second yields M L2 T−1.

Note the denominator of seconds (s) in the base units

.

Confusion with joules per second

The joule-second should not be confused with the physical process of joules per second (J/s).

Joules per second:

In physical processes, when the unit of time appears in the denominator of a ratio, the described process occurs at a rate.

For example, in discussions about speed, an object like a car travels a known distance of kilometers spread over a known number of seconds, and the car’s rate of speed becomes kilometers per second (km/s).

In physics, work per time describes a system’s power;

defined by the unit watt (W),

which is joule per second (J/s)

.

joules-second:

To understand joules x second (J⋅s) we can imagine the operator of an energy storage facility quoting a price for storing energy.

Storing 10,000 joules for 400 seconds would cost a certain amount.

Storing double the energy for half the time would use the same resources, and cost the same

.

See also

Orders of magnitude (angular momentum)

Action (physics)

.

References[edit]

^ BIPM. Le Système international d’unités / The International System of Units (‘The SI Brochure’). Bureau international des poids et mesures, eighth edition, 2006, updated 2014. URL http://www.bipm.org/en/si/si_brochure/, ISBN 92-822-2213-6.

^ Schlamminger, S.; Haddad, D.; Seifert, F.; Chao, L. S.; Newell, D. B.; Liu, R.; Steiner, R. L.; Pratt, J. R. (2014). “Determination of the Planck constant using a watt balance with a superconducting magnet system at the National Institute of Standards and Technology.” Metrologia. 51 (2): S15. arXiv:1401.8160 . Bibcode:2014Metro..51S..15S. doi:10.1088/0026-1394/51/2/S15. ISSN 0026-1394.

en.wikipedia.org /wiki/Joule-second

Joule-second

Contributors to Wikimedia projects3-3 minutes 12/27/2005

(Redirected from Joule second)

.

.

*👨‍🔬🕵️‍♀️🙇‍♀️*SKETCHES*🙇‍♂️👩‍🔬🕵️‍♂️*

.

📚📖|/\-*WIKI-LINK*-/\|📖📚

.

.

👈👈👈☜*“SI-DERIVED UNITS”* ☞ 👉👉👉

.

.

💕💝💖💓🖤💙🖤💙🖤💙🖤❤️💚💛🧡❣️💞💔💘❣️🧡💛💚❤️🖤💜🖤💙🖤💙🖤💗💖💝💘

.

.

*🌈✨ *TABLE OF CONTENTS* ✨🌷*

.

.

🔥🔥🔥🔥🔥🔥*we won the war* 🔥🔥🔥🔥🔥🔥