kajjumiaialome
08.04.2020 •
Mathematics
Is 110 m high, what is the potential
A roller coaster train with a mass of 500 kg stops at the top of a hill
energy of the train?
4,900 J
5,6123 j
55,000 j
539,000 j
Solved
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Ответ:
x+x+x+2+4=21
3x+6=21
(3x+6)/3=21/3
x+2=7
x=7-2
x=5
Answer 5, 7, 9