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noname [10]
2 years ago
6

A horizontal board of negligible thickness and area 1. 0 m2 hangs from a spring scale that reads 70 n when a 4. 0 m/s wind moves

above the board. The air below the board is stationary. When the wind stops, the scale reads answer n. The density of air is 1. 25 kg/m3 and treat the air as an ideal fluid.
SAT
1 answer:
andrey2020 [161]2 years ago
3 0

Answer:

A horizontal board of negligible thickness and area 2.0 m2 hangs from a spring scale that reads 80 N when a 4.0 m/s wind moves beneath the board

Explanation:

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