abigailc6740 abigailc6740
  • 15-03-2024
  • Physics
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A feather weighing 10.3 g with an area 22 mm² falls in calm air at a speed of 0.61 m/s. The feather is caught in an updraft and moves upward at a speed of 0.43 m/s. What is the speed of the updraft?

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