Practice problem
The mass of the Sun is 1,989,000,000,000,000,000,000,000,000,000 kg.1{,}989{,}000{,}000{,}000{,}000{,}000{,}000{,}000{,}000{,}000\text{ kg}.1,989,000,000,000,000,000,000,000,000,000 kg. What is this in scientific notation?
1.989×10−30 kg1.989 × 10^{-30}\text{ kg}1.989×10−30 kg
1.989×1029 kg1.989 × 10^{29}\text{ kg}1.989×1029 kg
1.989×1030 kg1.989 × 10^{30}\text{ kg}1.989×1030 kg
1.989×1031 kg1.989 × 10^{31}\text{ kg}1.989×1031 kg
Type a concept, like “slope” or “photosynthesis”.