3. The 12 mm-diameter rod CE and the 18 mm-diameter rod DF are attached to the rigid bar ABCD as shown. Knowing that the rods are made of aluminum and using E 73 GPa determine (a) the force in each rod caused by the loading shown, (b) the corresponding deflection of point A. 0.45 m- 45 kN 060 m 0.75 m

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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.