引用第6樓sheva於2011-03-20 17:46發表的“”: 中間條直線obey hooke's law , so slope = force constant = 120 有條式係 young modulus = k/r , where r is eqm distance (1.56) 計出黎 E=7.69*10^11
引用第6樓sheva於2011-03-20 17:46發表的“”: 中間條直線obey hooke's law , so slope = force constant = 120 有條式係 young modulus = k/r , where r is eqm distance (1.56) 計出黎 E=7.69*10^11
傲濤
2011-03-21 23:02
引用第6樓sheva於2011-03-20 17:46發表的“”: 中間條直線obey hooke's law , so slope = force constant = 120 有條式係 young modulus = k/r , where r is eqm distance (1.56) 計出黎 E=7.69*10^11