A piston-cylinder device initially contains 0.4 m

1.	A piston-cylinder device initially contains 0.4 m
A.	55.45 kJ
B.	-21.45 kJ
C.	-55.45 kJ
D.	-15.45 kJ
Answer» D. -15.45 kJ

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A piston-cylinder device initially contains 0.4 m

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