Answer:
5186 lb
Step-by-step explanation:
d = 6 ft
r = 6 ft/2 = 3 ft
volume of sphere = (4/3)πr³
volume of hemisphere = (1/2)(4/3)πr³
volume = (2/3)π(3 ft³) = 56.5486 ft³
weight = volume × density
weight = 56.5486 ft³ × 91.7 lb/ft³
weight = 5185.508 lb
Answer: 5186 lb
