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A glass of water weighs 4.78 N. A steel bolt weighs 2.71 N. The density ofsteel is 7.86 g/cm3. We tie the bolt to a string and lower the bolt into the glass of water so that the bolt is fully submerged in the water but is not touching the bottom or side of the glass
(a) How much does the glass of water weigh (N) now?
(b) What is the tension (N) in the string?
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