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Sandbox

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Firearm boox

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This user is a member of
WikiProject Firearms

v2 vg Ek=½mv2



5 Treatment after 5.1 Level of Care

Math formating

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Kinetic energy

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or

or

or more commonly

32.174 049
(in SI units of measure in SI mathematical form)
(in SI units of measure in English Engineering mathematical form)
(in English Engineering units of measure in English Engineering mathematical form)


-1 -2 -1 -2

TKE equations

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Substitution: (it yields a totally unrealalistic approximation of free recoil)

Short form:

Long form:

TKE calculation

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and with the numaric values in place;

of free recoil

Torque

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Sign formating

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This is how you strike through.

This is how you Outdent. Every colon (:) moves the outdent line inboard, one tab.

Pound force

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1 pound-force  = 1pound times the standard acceleration of gravity
= 1 lbm × 32.174 049 ft/s2
≡ 0.453 592 37 kg × 9.806 65 m/s2 = 4.448 221 62 N


1 pound-force  = 1 slug·ft/s2



Although force and weight can be mathematically equal, they are two distinct quantities:

and


The use of “mass” as an interchangeable word with “weight” is really an engineering colloquialism. So within the contexts of Newton's Second Law it is incorrect to say weight is equal to mass or to imply that weight is equivalent to mass:

outline formating

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  1. Frame of reference
    1. Newton's laws of motion for a particle
    2. Euler's laws of motion for rigid bodies and deformable bodies
    3. Rectilinear motion (particle) (kinematics and dynamics)
    4. Curvilinear motion (particle) (Kinematics and dynamics)
    5. Rigid body mechanics (kinematics and dynamics)
      • Merging Rigid body, Rotational motion
      • Mention Angular momentum and linking to its main article.
      • Inertial and non-inertial reference frames formulations.
      1. Centrifugal force
      2. Centripetal force
      3. Coriolis force
  • That's how you do an Outline

Task force

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Good afternoon Rracecarr,

would be interested in heading up a “Task force” to clean up and standardize all the pages (stubs) that pertain the Foot-Pound-Second System (FPS). The writings and math for pages like Poundal and Foot-poundal is all over the place. I checked out the Pound (mass) page. What are people thinking and for what reason was the Foot-Pound-Second System page redirected to the Pound (mass) page? See here for the proposal.


I would be more than glad to do as much of the work as possible. I think User:Dorminton and User:MarcusMaximus would support this proposal. Greg Glover (talk) 20:43, 11 August 2010 (UTC)[reply]

FPS Task force proposal

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Objective: to clean up and standardize pages from the Foot-Pound-Second System, its subsystems and units of measure for writing and math.

  1. Foot-Pound-Second System (FPS)
    • Redirected the FPS page away from the Pound (mass) page as a new page that will be the main article.
    • Write and edit new text for this page.
    1. Create subcategory called “Subsystems”
      • Redirect the English Engineering System page the new FPS page under Subsystems.
      • Add Gravitational System and Absolute System under Subsystems.
      • Create a new GravEngAbs box or find the old GravEngAbs box and fix it.
    • Use Footnotes.
  2. "Pound mass"
    • Create new page for the pound mass(name to be determined); m = F/a.
    • Write and edit new text for this page specifying Engineering and Absolute subsystems.
    • Redirect any references of weight to the Pound (mass) page; F = ma or W = mg/gc.
  3. Pound-foot (torque)
  4. Poundal
    • Clean up and standardize.
  5. Foot-poundal
    • Clean up and standardize.
  6. Pound force
    • Standardize.
  7. Slug
    • Standardize.

Supported or Unsupported

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Comments

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Use the Foot-pound (energy) page as a template.

Richter magnitude examples (2.0 MJ Base)Table Draft

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The following table is the final work as of 2:44pm PDT, 21 MAR 11

Richter magnitudes examples

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The following table lists the approximate energy equivalents in terms of TNT explosive force[1] – though note that the earthquake energy is released underground rather than overground. Most energy from an earthquake is not transmitted to and through the surface; instead, it dissipates into the crust and other subsurface structures. In contrast, a small atomic bomb blast (see nuclear weapon yield) will not simply cause light shaking of indoor items, since its energy is released above ground.

As stated above the Richter scale is LOG 10 based. Therefore, the Richter scale numbers may appear grossly understated or or overly stated; 8.1 to 8.12 or 9.0 to 9.02 on this table respectively.

That is because LOG 10 is exponential. Specifically it is exponential between the powers of 0 and 1. 10 to the power of 0 equals 1 and 10 to the power of 1 equals 10.

Following, 31.623 to the power of 0 equals 1, 31.623 to the power of 1 equals 31.623 and 31.623 to the power of 2 equals 1000. Therefore, an 8.0 on the Richter scale releases 31.623 times more energy than a 7.0 and a 9.0 on the Richter scale releases 1000 times more energy than a 7.0.

Richter
Approximate Magnitude
Approximate TNT for
Seismic Energy Yield
Joule equivalent Example
0.0 15.0 g 63.1 kJ
0.2 80.3 g (2.83 oz) 337.2 kJ Large hand grenade
0.5 206.5 g 867.2 kJ
1.0 476.0 g (1.05 lb) 2.0 MJ Small construction site blast
1.5 6.6 kg 27.6 MJ
2.0 15.0 kg 63.1 MJ
2.5 206.5 kg 867.2 MJ
3.0 476.0 kg 2.0 GJ
3.5 6.6 metric tons 27.6 GJ
3.74 9.5 metric tons 40.0 GJ Chernobyl nuclear disaster, 1986
3.79 11.0 metric tons 46.2 GJ Massive Ordnance Air Blast bomb
4.0 15.0 metric tons 63.1 GJ
4.3 118.9 metric tons 499.2 GJ Kent Earthquake (Britain), 2007
4.5 206.5 metric tons 867.2 GJ Tajikistan earthquake, 2006
5.0 476.0 kilotons 2.0 TJ Lincolnshire earthquake (UK), 2008

Ontario-Quebec earthquake (Canada), 2010[2][3]

5.5 6.6 kilotons 27.6 TJ Little Skull Mtn. earthquake (Nevada, USA), 1992

Alum Rock earthquake (California, USA), 2007
Chino Hills earthquake (Los Angeles, USA), 2008

5.6 8.1 kilotons 34.0 TJ Newcastle Earthquake Australia, 1989
6.0 15.0 kilotons 63.1 TJ Double Spring Flat earthquake (Nevada, USA), 1994
6.3 118.9 kilotons 499.2 TJ Rhodes earthquake (Greece), 2008

Christchurch earthquake (New Zealand), 2011

6.4 161.1 kilotons 676.8 TJ Kaohsiung earthquake (Taiwan), 2010
6.5 206.5 kilotons 867.2 TJ Caracas earthquake (Venezuela), 1967

Eureka earthquake (California, USA), 2010

6.6 261.9 kilotons 1.1 PJ San Fernando earthquake (California, USA), 1971
6.7 309.5 kilotons 1.3 PJ Northridge earthquake (California, USA), 1994
6.8 357.1 kilotons 1.5 PJ Nisqually earthquake (Anderson Island, WA), 2001

Gisborne earthquake (Gisborne, NZ), 2007

6.9 404.8 kilotons 1.7 PJ San Francisco Bay Area earthquake (California, USA), 1989

Pichilemu earthquake (Chile), 2010

7.0 476.0 kilotons 2.0 PJ Java earthquake (Indonesia), 2009

Haiti earthquake, 2010

7.1 1.5 megatons 6.2 PJ Messina earthquake (Italy), 1908

San Juan earthquake (Argentina), 1944
Canterbury earthquake (New Zealand), 2010

7.2 2.5 megatons 10.6 PJ Vrancea earthquake (Romania), 1977

Baja California earthquake (Mexico), 2010

7.5 6.6 megatons 27.6 PJ Kashmir earthquake (Pakistan), 2005

Antofagasta earthquake (Chile), 2007

7.6 8.1 megatons 34.0 PJ Gujarat earthquake (India), 2001
7.7 9.7 megatons 40.6 PJ Sumatra earthquake (Indonesia), 2010
7.8 11.4 megatons 47.8 PJ Tangshan earthquake (China), 1976

Hawke's Bay earthquake (New Zealand), 1931
Luzon earthquake (Philippines), 1990

8.0 15.0 megatons 63.1 PJ Mino-Owari earthquake (Japan), 1891

San Juan earthquake (Argentina), 1894
San Francisco earthquake (California, USA), 1906
Queen Charlotte Islands earthquake (B.C., Canada), 1949
Chincha Alta earthquake (Peru), 2007
Sichuan earthquake (China), 2008

8.1 46.2 megatons 194.0 PJ México City earthquake (Mexico), 1985

Guam earthquake, August 8, 1993[4]

8.12 50 megatons 210 PJ Tsar Bomba - Largest thermonuclear weapon ever tested
8.49 200 megatons 840 PJ Krakatoa 1883
8.5 206.5 megatons 867.2 PJ Sumatra earthquake (Indonesia), 2007
8.7 309.5 megatons 1.3 EJ Sumatra earthquake (Indonesia), 2005
8.8 357.1 megatons 1.5 EJ Chile earthquake, 2010,
9.0 476 gigatons 2.0 EJ Lisbon earthquake (Portugal), All Saints Day, 1755
Sendai earthquake and tsunami (Japan), 2011
9.02 800 gigatons 3.2 EJ Toba eruption 75,000 years ago; among the largest known volcanic events.[5]
9.2 2.5 gigatons 10.6 EJ Anchorage earthquake (Alaska, USA), 1964
9.3 3.8 gigatons 15.8 EJ Sumatra-Andaman earthquake and tsunami (Indonesia), 2004
9.5 6.6 gigatons 27.6 EJ Valdivia earthquake (Chile), 1960
10.0 15.0 gigatons 63.1 EJ Never recorded
12.25 95.2 teratons 400 ZJ Yucatán Peninsula impact (creating Chicxulub crater) 65 Ma ago (108 megatons; over 4x1030 ergs = 400 ZJ).[6][7][8][9][10]
22.7 309.5×1027 tons 1.3×1039 J Approximate magnitude of the starquake on the magnetar SGR 1806-20, registered on December 27, 2004.[11]


Good afternoon Glenn L, As I have stated earlier. I can't do logarithms. I see that you can. As I perceive over the last several months the community has adopted my compromise.

Can you go see here and double check the math?

Richter magnitudes for 2.0 MJ Table Draft

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Richter
Approximate Magnitude
Approximate TNT for
Seismic Energy Yield
Joule equivalent Example
1.0 476.0 g 2.0 MJ
1.1 1.5 kg 6.2 MJ
1.2 2.5 kg 10.6 MJ
1.3 3.8 kg 15.8 MJ
1.4 5.1 kg 21.4 MJ
1.5 6.6 kg 27.6 MJ
1.6 8.1 kg 34.0 MJ
1.7 9.7 kg 40.6 MJ
1.8 11.4 kg 47.8 MJ
1.9 13.1 kg 55.2 MJ
2.0 15.0 kg 63.1 MJ
2.1 46.2 kg 194.0 MJ
2.2 80.3 kg 337.2 MJ
2.3 118.9 kg 499.2 MJ
2.4 161.1 kg 676.8 MJ
2.5 206.5 kg 867.2 MJ
2.6 261.9 kg 1.1 GJ
2.7 309.5 kg 1.3 GJ
2.8 357.1 kg 1.5 GJ
2.9 404.8 kg 1.7 GJ
3.0 476.0 kg 2.0 GJ
  1. ^ FAQs – Measuring Earthquakes
  2. ^ "Magnitude 5.0 – Ontario-Quebec border region, Canada". earthquake.usgs.gov. Retrieved 2010-06-23.
  3. ^ "Moderate 5.0 earthquake shakes Toronto, Eastern Canada and U.S." nationalpost.com. Retrieved 2010-06-23.
  4. ^ "M8.1 South End of Island August 8, 1993". eeri.org. Retrieved 2011-03-11.. {{cite web}}: Check date values in: |accessdate= (help)
  5. ^ Petraglia, M.; R. Korisettar, N. Boivin, C. Clarkson,4 P. Ditchfield,5 S. Jones,6 J. Koshy,7 M.M. Lahr,8 C. Oppenheimer,9 D. Pyle,10 R. Roberts,11 J.-C. Schwenninger,12 L. Arnold,13 K. White. (6 July 2007). "Middle Paleolithic Assemblages from the Indian Subcontinent Before and After the Toba Super-eruption". Science 317 (5834): 114–116. doi:10.1126/science.1141564. PMID 17615356.
  6. ^ Bralower, Timothy J. (1998). "The Cretaceous-Tertiary boundary cocktail: Chicxulub impact triggers margin collapse and extensive sediment gravity flows" (PDF). Geology. 26: 331–334. doi:10.1130/0091-7613(1998)026<0331:TCTBCC>2.3.CO;2. ISSN 0091-7613. Retrieved 2009-09-03. {{cite journal}}: Unknown parameter |coauthors= ignored (|author= suggested) (help)
  7. ^ Klaus, Adam; Norris, Richard D.; Kroon, Dick; Smit, Jan (2000). "Impact-induced mass wasting at the K-T boundary: Blake Nose, western North Atlantic". Geology. 28: 319–322. doi:10.1130/0091-7613(2000)28<319:IMWATK>2.0.CO;2. ISSN 0091-7613. {{cite journal}}: |access-date= requires |url= (help); Unknown parameter |unused_data= ignored (help)
  8. ^ Busby, Cathy J. (2002). "Coastal landsliding and catastrophic sedimentation triggered by Cretaceous-Tertiary bolide impact: A Pacific margin example?". Geology. 30: 687–690. doi:10.1130/0091-7613(2002)030<0687:CLACST>2.0.CO;2. ISSN 0091-7613. {{cite journal}}: |access-date= requires |url= (help); Unknown parameter |coauthors= ignored (|author= suggested) (help)
  9. ^ Simms, Michael J. (2003). "Uniquely extensive seismite from the latest Triassic of the United Kingdom: Evidence for bolide impact?". Geology. 31: 557–560. doi:10.1130/0091-7613(2003)031<0557:UESFTL>2.0.CO;2. ISSN 0091-7613. {{cite journal}}: |access-date= requires |url= (help)
  10. ^ Simkin, Tom (2006). "This dynamic planet. World map of volcanoes, earthquakes, impact craters, and plate tectonics. Inset VI. Impacting extraterrestrials scar planetary surfaces" (PDF). U.S. Geological Survey. Retrieved 2009-09-03. {{cite web}}: Unknown parameter |coauthors= ignored (|author= suggested) (help)
  11. ^ Phil Plait (2009). "Anniversary of a cosmic blast". discovermagazine.com. Retrieved 2010-11-26.