boooooy I tell you what -
Manifest Destiny was a 19th-century belief that the expansion of the US throughout the American continents was both justified and inevitable.
They got all hyped up on coca cola and jolly ranchers and began moving out west fast as all heck. Firstly many believed God himself approved of their decision to expend westward ( you know how fierce religious beliefs were). Then you have to remember the impact gold can have on a mans mind, they heard bout gold in California and well the reasons added up to make it seem nearly criminal not to go. Those are just some of my reasons of how the belief in manifest destiny compounded the influence upon much of the american people. ( pardon some non-factual events )
North and West. USA and Russia. Let me know if that's correct.
Answer:
Answer below because its longer :)
Explanation:
When they say "strong groups" they mean factions. These are interest groups basically. The framers of the constitution recognize that factions are inevitable but by creating a stronger central government, we can balance these factions and form a better government.
Remember, the federalists used these papers to support the new constitution. So this instilled some fear about the out comes of a weak central government that the Articles of confederation had.
Hope this is somewhat correct or useful! :D