In question No. 50, the potential energy of the balloon

1.	In question No. 50, the potential energy of the balloon
A.	decreases by \[mgh\]
B.	increases by \[mgh\]
C.	increases by \[mg(1-h)\]
D.	increases by \[mgl\]
Answer» C. increases by \[mg(1-h)\]

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In question No. 50, the potential energy of the balloon

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