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(11%) Problem 6: A balloon filled with helium gas has an average density ofp,-039 kg/m3. The density of the air is pa 1.23 kg/m3. The volume of the balloon is V, 0.087 m3. The balloon floats upward with acceleration a Otheexpertt 50% Part (a) Express the acceleration of the balloon a in terms of the variables given in the problem statement, assuming upwards is th positive direction. a-(p Vbg-mg)m X Attempts Remain ed 色ム5000 Part (b) Calculate the numerical value of a in m s Grade Summary Potential ted

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