You desire to add a solar heating system to your swimming pool to extend the length of time you can use the pool. For maximum efficiency, the collector should be placed on an angle that will permit the sun’s rays to strike the collector at a 908 angle (Figure 15–24). When the sun is at its highest point of the day, you place a yardstick perpendicular to a fl at concrete surface. The stick casts a shadow 3.5 ft long. At what angle with respect to the ground should the solar collector be placed?
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