Final answer:
To estimate the size of the universe if the Sun were as tiny as one electron, we can use the scale factor and size of the Sun to calculate the diameter of the universe.
Step-by-step explanation:
To estimate the size of the universe if our Sun were as tiny as one electron, we can use the scale factor of 1 light-year to 9.461 x 10^12 kilometers. Given that the Sun is about 1.391 x 10^9 meters in diameter, we can convert this to kilometers by multiplying by 1000. Therefore, the diameter of the Sun is approximately 1.391 x 10^12 kilometers. If the Sun were as tiny as one electron, the estimated size of the universe would be about 1.391 x 10^12 kilometers.
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