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--- 183_notes:examples:videoswk4 [2016/08/13 22:22] – created waterso8
+++ 183_notes:examples:videoswk4 [2016/08/14 22:47] (current) – waterso8
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-===== Example: Box moving down a Ramp =====
+===== Example: Chains and bonds of copper wire =====
 === Video ====
+Part 1:
+You have a wire with a square-shaped cross-section. It's 3 m in length and made of copper (bond length = 2.57 e -10 m). The sides of the wire are 2mm wide.
+a) Calculate the number of chains in the wire.
 {{youtube>jsBxOSWTFyg?large}}
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+Part 2:
+b) Calculate the number of bonds per chain in the wire.
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+Part 3:
+c) Calculate the macroscopic spring stiffness constant of the wire if the interatomic spring stiffness is 28 N/m.
 {{youtube>HYxWx85VcRk?large}}