what force act on a bridge? why must engineers be certain that these forces are balanced?

iErO q asked: what are balanced and unbalanced forces….

Pros of a beam bridge?

Damien asked: In Physics we had to build a popscicle stick bridge. I allowed my partner to build the bridge and we agreed that i would write the paper. Well he made a beam bridge and i am supposed to support the beam bridge with historical or engineering imformation. What im getting at is what [...]

What do civil engineers do to make bridges earthquake proof?

czareanahisbored asked: And what are most bridges made of?

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