Iron has a density of 7.87 g/cm3. What mass of iron would be required to cover a football playing surface of 120 yd × 60 yd to a depth of 1.0 mm? (1 in = 2.54 cm)
A) 76 kg
B) 47 Mg
C) 7.6 × 105 g
D) 4.7 × 108 g
E) 1.9 × 107 g
Answer: B
Iron has a density of 7.87 g/cm3. What mass of iron would be required to cover a football playing surface of 120 yd × 60 yd to a depth of 1.0 mm? (1 in = 2.54 cm)
A) 76 kg
B) 47 Mg
C) 7.6 × 105 g
D) 4.7 × 108 g
E) 1.9 × 107 g
Answer: B