What did hamilton fear would happen if the proposed constitutuion was not adopted?

I believe the answer is: United States would not be able to pay back its war debt,

At that time, united states does not have the ability to raise enough tax revenues from the sates since the constitution does not explicitely granted the power for the federal government to tax the states. After the new constitution, the states are required to follow the tax regulations created by the feds.

i dont know the answer sorry but if i knew it i would of told you

the answer to your question is a because laws act as guidelines as to what is accepted in society. without it there would be conflicts between social groups and communities. it serves as a norm of conduct for citizens.