Newton's Second Law of Motion tells us that the net force applied to an object equals its ________

A) mass times velocity B) mass times acceleration
C) mass times energy D) momentum times velocity


B

Physics & Space Science

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____ galaxies have a great many short spiral segments branching from the spiral arms

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Gravitational Force: Two small objects, with masses m and M, are originally a distance r apart, and the magnitude of the gravitational force on each one is F. The masses are changed to 2m and 2M, and the distance is changed to 4r. What is the magnitude of the new gravitational force?

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