These two rhetorical questions mean basically the same thing. They can be translated with statements. Alternate translation: "No one can stand before his wrath! No one can resist the fierceness of his anger!" (See: [[rc://en/ta/man/translate/figs-parallelism]] and [[rc://en/ta/man/translate/figs-rquestion]])
Nahum speaks of Yahweh's anger as if it were a liquid that he pours out and which burns like fire. This can be stated in active form. Alternate translation: "He pours out his wrath like fire" or "He expresses his fierce anger" (See: [[rc://en/ta/man/translate/figs-metaphor]])
This can be stated in active form. Alternate translation: "he breaks apart the rocks" or "he causes the rocks to break apart" (See: [[rc://en/ta/man/translate/figs-activepassive]])