بسم الله الرحمن الرحيم
السلام عليكم ورحمة الله وبركاته
Question 1
Part a) density = mass/volume , ρ = m / V
Mass is given , Volume of sphere is = (4/3)*pi*r^3
Part b) Specific gravity = density of fluid or substance / density of water , SG = = ρ / ρH2O
density of fluid or substance we have found it in part a
density of water we knew it as 1000 kg/m^3
يرجى التأكد من الإجابات .. وإن شاء الله تكون صحيحه ووفقك الله