The ra is read heavy.
Ra is read heavy (tafkhim) when it carries a fathah or dhammah, or when it is silent but the preceding letter carries a fathah/dhammah.
Raise the back of the tongue to produce a full, weighty 'ro/ru'.
Ra with a fathah/dhammah, or a silent ra preceded by a fathah/dhammah.
rabbil-'ālamīn
"[All] praise is [due] to Allāh, Lord of the worlds -"
faṣalli lirabbika wanḥar
"So pray to your Lord and offer sacrifice [to Him alone]."
dhātil-burūj
"By the sky containing great stars"
The ra is read heavy. Ra is read heavy (tafkhim) when it carries a fathah or dhammah, or when it is silent but the preceding letter carries a fathah/dhammah.
Raise the back of the tongue to produce a full, weighty 'ro/ru'.
There are 3 letters: رَ رُ رْ. Ra with a fathah/dhammah, or a silent ra preceded by a fathah/dhammah.
One example is in Surah Al-Fatihah 1:2: "رَبِّ ٱلْعَٰلَمِينَ" (rabbil-'ālamīn) — "[All] praise is [due] to Allāh, Lord of the worlds -".