It sure seems like it sometimes. But so far, it's not even shaky. Look at how big the country is; 50 state and all of them different. Look at how many different kinds of people we have in the US; strength is in diversity. The US can claim a vast diversity of social and economic conditions; again, strength in diversity. That means that if there are problems in some, there are many more that work well.
Step back from your personal situation and look at a wider circle; step back from the media images, they rarely show what's right with the world. Look at what's working right, there are many problems but most people in the US have a place to live; most places have a good food supply; most places have some level of education and medical care; most places in the US have reliable water sources, reliable transportation options and relative safety. The US even has vast and varied entertainment and amusement industry that is accessible to most.
If all your interested in is seeing the bad then that is all you will see.
In some ways, yes. The growth that spurred development throughout the last 2 centuries cannot infinitely last. Resources are becoming consumed and there is no new lands to tap. Further, as other developing nations (Brazil, Russia, India, and China) emerge in the global economy, the exploitation of other nations becomes harder and more competitive.
As such, many of the programs picked up during the time of expansion will eventually have to be cut away to leave the core of the nation intact. So parts of the nation will seem as if it's falling apart, but really this is just the trimming of the fat.
gravity
No, electromagnetism does not prevent us from falling through the floor. The repulsion between electrons in our body and the electrons in the floor creates the sensation of solidity, keeping us from passing through it.
Usher
Gravity is the force that pulls us toward the Earth's center and helps keep us grounded. Our muscles and balance system work together to maintain our stability and prevent us from falling over.
no
[object Object]
D.J got us Falling in Love
225
To preserve the Republic from falling into the hands of the communists.
gravity keeps us down
R and b
Currency rates are relative prices, so as the US Dollar falls, the alternate currency is rising. In economic terms, either is possible. In 2009, the accepted wisdom is that the US Dollar is the culprit, falling in value.