[单选题]
A copper wire is found to break when subjected to minim t:),dt 3jnpxj0cdptp;o9a2ryfx; d*1 yw4 uhum tension of 36 bi*ehrdo 0t )ruj r(5v6 d.8njN. If the di*o) th50rn6j v dr.8r(bjue wire diameter were half as great, we would expect the wire to break when subjected to a minimum tension of
