A large symmetrical drum for drying sand is operated by the geared motor drive shown. If the mass of the sand is  710 kg and an average gear-tooth force of  2.75 kN is supplied by the motor pinion A to the drum gear normal to the contacting surfaces at B, calculate the average offset  x¯ of the center of mass G of the sand from the vertical centerline. Neglect all friction in the supporting rollers. Assume r = 140 mm, R = 515 mm

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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.