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  1. ...139*10^6[=139E6]*(π/4)*0.025^2 = 68200 N = 68.2kN (2) Strain = Elongation / Original length = Stress / Young'...

    分類:科學及數學 > 工程學 2013年07月19日

  2. ...1.273 x 108 N/m2 Thinner bar = 3.537 x 108 N/m2 So strain in the thicker bar = 1.273 x 108/(2 x 1011) = 6.37 x 10-4 with extension...

  3. ...material is its ability to deform under tensile stree. (b) Maximum strain = 6/250 = 0.024 (c) Cross-sectional area of rod = pi x 0.003^2 m^2 = 2.827x10...

  4. ...2 Hence, stress = 100/(7.854x10^-7) N/m^2 = 1.273x10^8 N/m^2 Strain = 2/1500 = 1.333 x 10^-3 Young's modulus = 1.273x10^8/(1.333x10^-3) ...

  5. stress and strain are different in various situation.... they depends on the setting...

  6. ...98 N / mm2 b) (i)Young modulus =(ii)Stress / (iii) Strain (i) Young modulus of (Al) , MUST ...

  7. For the graph, please go to the following link: http://s726.photobucket.com/albums/ww265/physicsworld2010/?action=view&current=physicsworld04Jul132056.jpg 圖片參考:http://i726.photobucket.com/albums/ww265/physicsworld2010...

    分類:科學及數學 > 數學 2009年07月24日

  8. 圖片參考:http://i320.photobucket.com/albums/nn347/old-master/20130104_1_zps2fef7384.png http://i320.photobucket.com/albums/nn347/old-master/20130104_1_zps2fef7384.png 2013-01-05 23:44:53 補充: Why Si and O can't form double bond while P and S can do so with O...

    分類:科學及數學 > 化學 2013年01月18日

  9. should the deadly H7N9 strain of bird flu strike locally during the busy May 1 Golden... in preparation for a possible outbreak of the deadly H7N9 strain of bird flu during the busy May 1 gold Week holiday...

    分類:社會及文化 > 語言 2013年06月10日

  10. The Andromeda Strain A military satellite returns to Earth, and a recovery team, in...

    分類:社會及文化 > 語言 2008年05月22日