Where It's Placed (놓여 있어요)

놓여 있다 and 걸려 있다 are more specific versions of 있어요. 꽃병이 테이블 위에 있어요 is also technically true, but naming how something sits there, laid flat versus hanging, sounds more natural and detailed, the kind of thing a native speaker adds without even thinking about it.

The split isn’t about size or weight, it’s about orientation. Anything resting flat on a surface is 놓여 있다; anything suspended from something is 걸려 있다. A clock lying on a table is 놓여 있어요; the same clock mounted on the wall is 걸려 있어요.