What is the meaning of もの?

conjunctive particle: Because.

1. 〜ね, 〜な: Used to indicate reason or excuse

〜ね, 〜な: Used to indicate reason or excuse

A sentence-final particle used for emphasis.

1. Used to assert something. Often carries feelings of dissatisfaction or downheartedness, but not always.

   Used to assert something. Often carries feelings of dissatisfaction or downheartedness, but not always.

   Source: wiktionary.org