The equation of the turning moment diagram for the three crank engine is given by: T(N.m) =25000 - 7500 sin 3theta  where θ radians is the crank angle from inner dead cen?tre. The moment of inertia of the flywheel is  400 kg-m2 and the mean engine speed is 300 r.p.m. Calculate the power of the engine and the total  percentage fluctuation of speed of the flywheel, if 1. The resisting torque is constant, and 2. The  resisting torque is (25 000 + 3600 sin θ ) N-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.