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SCIN 133 SCIN133 WEEK 2 ASSIGNMENT SOLUTION (AMERICAN PUBLIC UNIVERSITY)

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III.- Solve the following problems from Chapter 2, Parallel Exercises, Group B:

12.- A rocket moves through outer space at 11,000 m/s. At this rate, how much time would be required to travel the distance from Earth to Moon, which is 380,000 km?

17.- An object is observed to fall from a bridge, striking the water below 2.50 s later. (a) With what velocity did it strike the water? (b) What was its average velocity during the fall? (c) How high is the bridge?

22.- A 30. kg shell is fired from a 2,000. kg cannon with a velocity of 500. m/s. What is the resulting velocity of the cannon?

27.- A 1,000 kg car accelerates uniformly to double its speed from 36 km/h in 5 s. What net force acted on this car?

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