9.3 x 10-3
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The radius of Mercury is approximately 2.44 x 10^6 meters.
The scientific notation for a human red blood cell with a diameter of 0.000008 would be 8 x 10^-6 meters.
25 kilograms in scientific notation is 2.5 × 101kg
The speed of light is approximately 3 x 10^8 meters per second. To convert this to nanometers per second, we multiply by 1 billion (10^9) to get 3 x 10^17 nanometers per second.
To convert cubic centimeters to cubic meters, you need to divide by 1,000,000 (since 1 meter is 100 centimeters, and you are working in three dimensions). So, 4.6 cm³ is equal to 4.6/1,000,000 = 0.0000046 m³. In scientific notation, this would be written as 4.6 x 10^-6 m³.