Activity 1. Two wheels weighing W Kg and 20 Kg respectively are connected by a rod of negligible weight and are free to roll on the smooth planes shown. Determine the magnitude of W so that the rod will be horizontal when the system is in equilibrium. (Ans. W = 60 Kg) w 30 60° 20Kg 2m

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Electrical Power Generation

In an electric power generator, one type of energy is converted into electrical energy. Power-generating systems are simply a combination of potential or stored energy that is converted to provide kinetic energy, which, in turn, generates electrical energy for use in engines, lighting, heating, and other benefits of modern life.