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Mondo
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(a)-A fossilised tree was tested and contains 10 grams of Carbon-14. Given that there was 12 grams of Carbon-14 present when it
1 answer
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A gymnist is swinging on a high bar. The distance between his waist and the bar is 1.1 m, as the drawing shows.
At the top of the
2 answers
7,153 views
