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Physics 9 Online
OpenStudy (anonymous):

I need to build a balsa wood bridge & I have no idea how to do it . It has to be more than 15 cm long and between 2.5 cm and 20 cm wide. It has to be 2.5 cm tall. Anyone has any ideas ? @robtobey @Destinymasha @sammixboo @Miracrown I'llapreciatethe help :)

OpenStudy (anonymous):

* Atleast 2.5 cm tall

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