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A girl runs a distance of 100 meters in 20 seconds. How long did it take the 12 girl to run the race? *
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Iron reacts with sulfur to form iron sulfide. if 60 grams of iron reacts with sulfur to produce 90 grams of iron sulfide, how much sulfur has been used in the chemical reaction?
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Which best describes the difference between internal and thermal energy?
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The brightest star in the night sky in the northern hemisphere is sirius. its distance from earth is estimated to be 8.7 light years. a light year is the distance light travels in one year. light travels at a speed of 3.00 × 108 m/s. calculate the distance from earth to sirius in miles. (1 mi = 5280 ft) g
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A girl runs a distance of 100 meters in 20 seconds. How long did it take the 12 girl to run the race...
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