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IUT_14-15
HSC - পদার্থ বিজ্ঞান ১ম পত্র
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অধ্যায়-০৫ঃ কাজ, শক্তি ও ক্ষমতা
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The third floor of a house is 8.0m above the street level. How much work is needed to move a 150kg refrigerator to this third floor?
A.
9.5 kJ
B.
10.8 kJ
C.
11.8 kJ
D.
12.8 kJ
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