The crank and connecting rod of a theoretical steam engine are 1.5 m and 3 m long respectively. The crank makes 180 r.p.m. in the clockwise direction. When it has turned 50° from the inner dead centre position, determine : 1. Velocity and acceleration of the piston 2. Angular velocity and angular acceleration of the connecting rod

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Radiation

Radiation can be described as the energy in the form of a particular matter or electromagnetic waves traveling in the air and can be in the form of light, sound, and heat. Radiation can be detected through special instruments like X-rays. The radiation from a cooler object is less intense as compared to the radiation from hot objects.