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tekilochka [14]
3 years ago
11

10 PTS!!! HELP!

Mathematics
2 answers:
KIM [24]3 years ago
7 0
Answer for a = 32 j
Answer for b = 8 j
mixas84 [53]3 years ago
4 0
A) To lift a similar chair to a height of 80 cm, you would need 32 joules.  
b) The amount of energy that would be needed to lift a chair that weighs 2kg to a height of 40 cm would be 8 joules. 
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