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  2. List of common physics notations - Wikipedia

    en.wikipedia.org/wiki/List_of_common_physics...

    meter per second (m/s) specific heat capacity: joule per kilogram per kelvin (J⋅kg −1 ⋅K −1) viscous damping coefficient kilogram per second (kg/s) electric displacement field also called the electric flux density coulomb per square meter (C/m 2) density: kilogram per cubic meter (kg/m 3) diameter: meter (m)

  3. 12-hour clock - Wikipedia

    en.wikipedia.org/wiki/12-hour_clock

    Some style guides suggest the use of a space between the number and the a.m. or p.m. abbreviation. [citation needed] Style guides recommend not using a.m. and p.m. without a time preceding it. [17] The hour/minute separator varies between countries: some use a colon, others use a period (full stop), [15] and still others use the letter h.

  4. Glossary of physics - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_physics

    The study of macroscopic, atomic, subatomic, and particulate phenomena in chemical systems in terms of laws and concepts of physics. physical constant physical quantity physics The natural science that involves the study of matter and its motion through space and time, along with related concepts such as energy and force.

  5. What Do AM and PM Stand For? - AOL

    www.aol.com/am-pm-stand-153002424.html

    If the answer to the question “What do AM and PM mean” surprised you, find out the answer to “What does P.S. stand for.” Sources: Dictionary.com: “What Do “a.m.” And “p.m.” Stand ...

  6. OK, What Do 'A.M.' and 'P.M.' Actually Stand For? - AOL

    www.aol.com/lifestyle/ok-m-p-m-actually...

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  7. Time in physics - Wikipedia

    en.wikipedia.org/wiki/Time_in_physics

    is the corresponding change of coordinates.) The speed of light c can be seen as just a conversion factor needed because we measure the dimensions of spacetime in different units; since the metre is currently defined in terms of the second, it has the exact value of 299 792 458 m/s. We would need a similar factor in Euclidean space if, for ...

  8. Acronym vs. Abbreviation vs. Initialism: What’s the Difference?

    www.aol.com/acronym-vs-abbreviation-difference...

    What Is the Difference Between an Abbreviation and an Acronym? Yourdictionary.com. List of Common Acronyms. Enchantedlearning.com. Acronyms and Initialisms: Worksheet Printouts.

  9. List of time zone abbreviations - Wikipedia

    en.wikipedia.org/.../List_of_time_zone_abbreviations

    Such designations can be ambiguous; for example, "CST" can mean China Standard Time (UTC+08:00), Cuba Standard Time (UTC−05:00), and (North American) Central Standard Time (UTC−06:00), and it is also a widely used variant of ACST (Australian Central Standard Time, UTC+9:30). Such designations predate both ISO 8601 and the internet era; in ...