[单选题]
A copper wire is found to break when subjected :qtov f 1v32eexaky 86 u*n04colfms9to minimum v7v lv3ysd2z3hjv1 b6tension of 36 N. If the wire diameter were half as great, we would expect the wire to break when subjected to a minidzv7j l12sh6vb 3 v3vymum tension of
