4.97×10−7 m4.97 \times 10^{-7} \mathrm{~m}4.97×10−7 m
4.97×107 m4.97 \times 10^{7} \mathrm{~m}4.97×107 m
3. 7×108 m\text { 3. } 7 \times 10^{8} \mathrm{~m} 3. 7×108 m
3.7×10−8 m3.7 \times 10^{-8} \mathrm{~m}3.7×10−8 m
