A composite pendulum is made of a uniform slender rod and a uniform disk. If the rod has length of 1.7 m and mass of 9.0 kg, and the disk has radius of 0.38 m and mass of 6.7 kg, determine the radius of gyration k about the centroidal x axis. Please pay attention: the numbers may change since they are randomized. Your answer must include 3 places after the decimal point, and proper unit. R G Your Answer: Answer G y Profile view units

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Conservation of Energy

In physics, the rule of the conservation of energy states that energy doesn’t disappear from the atmosphere; instead, it changes its form from one type to another. Energy is one of the most important physical quantities in nature, and it cannot be created or destroyed — only transformed.