A 2.6-m-diameter merry-go-round with rotational inertia 140 kg m² is spinning freely at 0.60 rev/s. Four 25-kg children sit suddenly on the edge of the merry-go-round. Part A Find the new angular speed. Express your answer using two significant figures. V= for Part A for Part A undo for Part A redo for Part A reset for Part A keyboard shortcuts for Part A help for Part A Submit Part B Determine the total energy lost to friction between the children and the merry-go-round. Express your answer using two significant figures. ΔΚ = Request Answer Submit rev/s for Part B for Part B undo for Part B redo for Part B reset for Part B keyboard shortcuts for Part B help for Part B Request Answer J

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Chapter1: Units, Trigonometry. And Vectors
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A 2.6-m-diameter merry-go-round with rotational inertia 140 kg. m² is spinning freely
at 0.60 rev/s. Four 25-kg children sit suddenly on the edge of the merry-go-round.
Part A
Find the new angular speed.
Express your answer using two significant figures.
V=
for Part A for Part A undo for Part A redo for Part A reset for Part A keyboard shortcuts for Part A help for Part A
Submit
Part B
Determine the total energy lost to friction between the children and the merry-go-round.
Express your answer using two significant figures.
AK =
Request Answer
Submit
rev/s
for Part B for Part B undo for Part B redo for Part B reset for Part B keyboard shortcuts for Part B help for Part B
Request Answer
J
Transcribed Image Text:A 2.6-m-diameter merry-go-round with rotational inertia 140 kg. m² is spinning freely at 0.60 rev/s. Four 25-kg children sit suddenly on the edge of the merry-go-round. Part A Find the new angular speed. Express your answer using two significant figures. V= for Part A for Part A undo for Part A redo for Part A reset for Part A keyboard shortcuts for Part A help for Part A Submit Part B Determine the total energy lost to friction between the children and the merry-go-round. Express your answer using two significant figures. AK = Request Answer Submit rev/s for Part B for Part B undo for Part B redo for Part B reset for Part B keyboard shortcuts for Part B help for Part B Request Answer J
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