Distance from horizon² = height( Diameter of the earth + height)
Distance from horizon² = 3.7( 3959 x 2 + 3.7)
Distance from horizon² =29310.29
Distance from horizon = 171.2 mi
Answer: 171.2 mi
Capacity of the fish tank = 70 x 44 x 38 = 117 040 cm³
95% full = 0.95 x 117040 = 111 188 cm³
Volume of the log = (3.14) x (6)² x 57 = 6443.28cm³
Water spill = 6443.26 - (117 040 - 111 188 ) = 5941.26 cm³
Answer: 5941.26 cm³