How did the french navy the americans in the yorktown battle

French fleet kept guard at Chesapeake Bay; the British ships could not get in to help Cornwallis escape by sea. The French Navy prevented the British from getting supplies and reinforcements.

Explanation:

in mcculloch v. maryland (1819) the supreme court ruled that congress had implied powers under the necessary and proper clause of article i, section 8 of the constitution to create the second bank of the united states and that the state of maryland lacked the power to tax the bank.

gibbons v. ogden, (1824), was a landmark decision in which the supreme court of the united states held that the power to regulate interstate commerce, granted to congress by the commerce clause of the united states constitution, encompassed the power to regulate navigation.