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SCIN 133 SCIN133 WEEK 3 ASSIGNMENT SOLUTION (AMERICAN PUBLIC UNIVERSITY)

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III.- Solve the “Parallel Exercises, Group B”) problems below:

2.- A force of 400.0 N is exerted on a 1,250 N car while moving it a distance of 3.0 m. How much work was done on the car?

6.- (a) How many horsepower is a 250 W lightbulb? (b) How many Watts is in a 230 hp car?

14.- Compare the kinetic energy of an 800.0 kg car moving at 20.0 m/s to the kinetic energy of a 1,600. kg car moving at an identical speed.

19.- A small sports car and a pickup truck start coasting down a 10.0 m hill together, side by side. Assuming no friction, what is the velocity of each vehicle at the bottom of the hill?

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