A sliding block C moves along a horizontal line Q2C. A rotation arm Q2B is 4 feet & 3 in. long and rotates around a center Q2. The connecting rod BC is 8 feet long. This rod is extended to D, making BCD 11 feet & 9 in. long. (a) Make a drawing of this linkage and (b) trace the path of D while the arm makes 1 complete revolution CCW. (c) Locate points for each 15 deg movement of the arm Q2B, beginning with Q2B coinciding with Q2C.

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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.