A Sandbag in Outer Space Moves at 3 M/s and Collides

question 102

Multiple Choice

A sandbag in outer space moves at 3 m/s and collides and sticks to a half-as-massive sandbag initially at rest. Compared with the kinetic energy of the moving bag before collision, the kinetic energy of the coupled bags after collision is

• A)one-third.
• B)two-thirds.
• C)three-quarters.
• D)not enough information given

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describes the transformation of a country’s population structure as it progresses from high birth and death rates to low birth and death rates, often as part of economic development.

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