Education Ch13 universal gravitation

1. ‫ﻋﺸﺭ‬ ‫ﺍﻟﺜﺎﻟﺙ‬ ‫ﺍﻟﺠﺯﺀ‬:‫ﺍﻟﻌﺎﻡ‬ ‫ﺍﻟﺠﺫﺏ‬ ‫ﻗﺎﻨﻭﻥ‬ 2 ‫ﺘﻭﺜﻴــﻕ‬ ‫اﻟﺒﯿﺎن‬…