14. A mass of 1 kg is hanged through a spring. The spring is stretched through 1cm. What is the energ stared in spring? (a) 0.449 J (b) 0.049 J (C) 4.9 J (d) 49 J
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the process by which green plants and some other organisms use sunlight to synthesize nutrients from carbon dioxide and water. Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a by-product.
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0.049
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