The radius of the sun is 700,000 km. In scientific notation, this is written as

Answer

To write a number in scientific notation, we express it in the form of M x 10^n, where M is a number greater than or equal to 1 and less than 10, and n is an integer representing the number of decimal places moved. For the number 700,000: 1. Identify the location of the decimal point. In 700,000, it's at the very end after the last zero. 2. Move the decimal point to the left until there is only one non-zero digit to its left. We move it 5 places to the left to get 7.0. 3. The number of places moved becomes the exponent of 10. Since we moved the decimal point 5 places to the left, the exponent is positive 5. 4. Combining these, we get 7 x 10^5 km. Therefore, 700,000 km in scientific notation is 7 x 10^5 km.