Created by StemPy LabWhich of these is not one of the seven SI base units?
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← Two students stand 200 m apart on a straight road. Each looks at a temple on a far hill. The two lines of sight meet at the temple at an angle of 0.50°. About how far away is the temple?A light year is the distance that light travels in one year. Light travels 3.0 × 10⁸ m each second. About how many metres is a light year? →
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