Solved: The wood beam has an allowable shear stress of

 The rise of Persia and the Ionian revolt o Assyria  Agricultural people  Along the Tigris river  Raided their neighbors  Ruled by bandits  Took Babylon in 739 BC  Burned it in 689  The Assyrians had very sophisticated siege weapons  Subjugation of Israel  They submitted to Assyria  The Assyrians were a very aggressive people  Phoenicians dealt with Assyrians by colonizing other places and getting rich so they could buy protection o Rise of Persia  Cyrus conquered the median empire and created Persia in 550