Biology, 20.09.2019 18:00 queenkimm26

Amy is experimenting to see how a truss (a type of support) can strengthen a bridge. amy builds several models of bridges out of toothpicks. each model has a different number of trusses. amy suspends each model between two desks. she then adds lead weights to each bridge, one-by-one, until the bridge breaks. in the chart below, amy recorded how many lead weights each bridge held before breaking.

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Amy is experimenting to see how a truss (a type of support) can strengthen a bridge. amy builds seve...