# Chapter 13 - For Thought and Discussion - Page 245: 4

no change, increase

#### Work Step by Step

The horizontal spring system's movement depends on the $\underline{mass}$ of the object. Since this does not change anywhere in the universe, we know that the horizontal pendulum will not be affected. Contrarily, we know that vertical motion does depend on the location. Since g is inversely related to f, we know that decreasing g will increase the frequency of the pendulum.

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