A group of cell- phone antennas are to be installed on a single steel pole that will be embedded into a dense silty sand with Φ' = 35°. Near the ground surface this pole will be connected to a 24 in diameter drilled shaft. The resultant of the lateral wind load will be 600 lb and will act at a point 50 ft above the ground surface. Using a rigid analysis, compute the required depth of embedment and the maximum moment in the drilled shaft. Use a factor of safety of 3.0.

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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.