2. Sebastian, an exchange student from Denmark, likes going out with his new friends but quickly becomes overwhelmed by their long conversations, loud music, and cell phone interruptions. What is he experiencing?

Culture shock

Explanation:

Culture shock is an experience about a persona in another foreign country, this happens when someone moves to another country and unknown life, culture, and this new region, Common problems include: information overload, language barrier, generation gap, technology gap.

For example, if a Japanese moves to Africa, would be a huge change in culture, technology, language, even physical.

only #2 represents an object at rest on a table.

in #1, there is no normal force due to the table; the object is accelerating downward.

in #3, the vertical forces are not balanced; the object is accelerating downward.

in #4, neither the vertical nor the horizontal forces are balanced. the object is accelerating upwards and to the right.