The first.
The word "happiness" is stressed on the first syllable: HAP-pi-ness.
the fist syllable is stressed.
It is both. The spelling is the same, but the pronunciation is different. For the verb form, the second syllable is stressed. For the noun form, the first syllable is stressed.
The word "joy" means happy and is one syllable. It is a noun that represents a feeling of great pleasure and happiness. In phonetics, it is pronounced /dʒɔɪ/ with a single stressed syllable.
The stress in a prefix used as a noun typically falls on the first syllable.
Every word has a stress. Since "sun" is only one syllable, it is stressed.
Either syllable may be stressed, depending on the meaning. Like some other two-syllable words, permit is a noun when stressed on the first (PERmit), and a verb when stressed on the last syllable (perMIT). Other examples of this phenomenon are: PER-fume (noun) and per-FUME (verb); PER-fect (adjective) and per-FECT (verb); CONtent and conTENT; similarly CONvoy and conVEY.
Footprint is stressed on the first syllable.
The second syllable (-ta-) is the stressed syllable in potato.
The stressed syllable of "satisfactory" is the third syllable, which is "fac."
The stressed syllable in "believe" is the second syllable - "lieve."
Lightning is stressed on the first syllable.