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.

25 points fast click to review the online content. then answer the questions(s) below, using complete sentences. scroll down to view additional questions. online content: site 1. take the study skills assessment. identify one area in which you could improve. then describe what steps you will take to improve in that area.