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A helium-filled weather balloon has a volume of 632 L at 15.9°C and 757 mmHg. It is released and rises to an altitude of 8.38 km, where the pressure i
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Suppose that 27 j of work is needed to stretch a spring from its natural length of 6 m to a length of 9 m. (a) how much work is needed to stretch the spring from 12 m to 14 m? j (b) how far beyond its natural length will a force of 78 n keep the spring stretched?
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Which wave is the result of amplification and produces a louder sound
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A helium-filled weather balloon has a volume of 632 L at 15.9°C and 757 mmHg. It is released and ris...
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