Wednesday, May 23, 2018

solid state physics - What happens if a metal wire that was one-atom in thickness was pulled across a finger?


What would happen if a metal wire that was one-atom was pulled across your finger? Would it cut off your finger, or would it pass through your finger without harming you? What if the metal one atom thick was "unbreakable"?





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classical mechanics - Moment of a force about a given axis (Torque) - Scalar or vectorial?

I am studying Statics and saw that: The moment of a force about a given axis (or Torque) is defined by the equation: $M_X = (\vec r \times \...