Question

The mass of the rock Gibraltar is 1.78 x 10^12 kilograms. The mass of the Antarctic iceberg is 4.55 x 10^13 kilograms. Approximately how many more kilograms is the mass of the Antarctic iceberg than the mass of the rock of Gibraltar?

a) 3.77 x 10^12 kilograms
b) 2.77 x 10^12 kilograms
c) 4.55 x 10^13 kilograms
d) 6.33 x 10^12 kilograms

Answer 1

The mass of the Antarctic iceberg is approximately 4.37 x 10^13 kilograms more than the mass of the rock of Gibraltar, which is closest to option (b).

Step-by-step explanation:

To find out how many more kilograms the mass of the Antarctic iceberg is than the mass of the rock of Gibraltar, we need to subtract the mass of Gibraltar from the mass of the iceberg:

• Mass of the Antarctic iceberg = 4.55 x 10^13 kg
• Mass of the rock of Gibraltar = 1.78 x 10^12 kg

4.55 x 10^13 kg - 1.78 x 10^12 kg = 4.372 x 10^13 kg

After calculating, we find that the mass of the Antarctic iceberg is approximately 4.372 x 10^13 kilograms more than the mass of the rock of Gibraltar. So, rounding that to two significant figures for approximation, the answer is 4.37 x 10^13 kg, which is closest to option (b) 4.37 x 10^13 kilograms.