QUESTION 8 3 balls are positioned on thex axis. The first ball has a mass of...

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science physics

Answer 1

Answer #1

as we know

r = ( m1 r1 + m2 r2 + m3 r3) / ( m1 + m2 + m3)

r = ( 1* 0 + 2* 0.3 + 1* 4) / ( 1 + 2 +1)

r = 1.15 m

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Answer 2

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