The aircraft A with radar detection equipment is flying horizontally at an altitude of 12.2 km and is increasing its speed at the rate of 1.33 m/s each second. Its radar locks onto an aircraft B flying in the same direction and in the same vertical plane at an altitude of 18.3 km. If A has a speed of 1020 km/h at the instant when 0 = 35°, determine the values of r and at this same instant if B has a constant speed of 1630 km/h. Answers: 7 = 0 = i 18.3 km 12.2 km m/s² rad/s²

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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.