A wind turbine with two or four hollow hemispherical cups connected to a pivot is commonly used to measure wind speed. Consider a wind turbine with four 8-cm-diameter cups with a center-to-center distance of 40 cm. The pivot is stuck as a result of some malfunction, and the cups stop rotating. For a wind speed of 15 m/s and air density of 1.25 kg/m3, determine the maximum torque this turbine applies on the pivot.

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11th Edition
ISBN:9781305952300
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A wind turbine with two or four hollow hemispherical
cups connected to a pivot is commonly used to measure
wind speed. Consider a wind turbine with four 8-cm-diameter
cups with a center-to-center distance of 40 cm. The pivot is stuck as a result of some malfunction,
and the cups stop rotating. For a wind speed of 15 m/s
and air density of 1.25 kg/m3, determine the maximum torque
this turbine applies on the pivot.

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