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Q. A runner begins at the orgin and walks 5 km due north. He then makes a 60 degree turn to the left(300 compass heading) and walks 4 km. He than walks 15 km due south and stops. How far is he from the orgin?

Q. A simple pendulum has a mass of 0.350 kg and a length of 2.00 m. It is displaced through an angle of 7.0° and then released.

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