1. After the Taal Volcano erupted, two personnel from the Philippine Institute of Volcanology and Seismology monitor the possible after effect of the said calamity. They set two points X and Y, 7000 meters apart on the same plane as the volcano. Station Y was the nearest point to the volcano. An angle of elevation was observed to be 8 degrees from Point X to the peak of volcano. Now, it erupts once again, emitted vertical smoke from the volcano's crater opening mouth and extends to an angle of inclination of 64 degrees now from both Point X and Y. Assuming smoke is emitted in a vertical axis, find the height of the smoke.

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Pressure and Stress