Physics
posted by Sean .
1. You have a large wind tunnel of crosssectional area 0.61[m2]. The wind speed is 4[ms1]. Assume air density is 1 [kgm3]. The Drag is 2.3[N].
What is the coeffecient of drag for the shape that has diameter 7.32[cm]? .
Use three sig. figs. or N/A if there is not enough information.
2. You have a large wind tunnel of crosssectional area 0.95[m2]. You have a set of shapes that are all the same shape except they each have a different crosssectional area. The wind speed is held constant at 3.2[ms1]. Assume air density is 1 [kg m3]. The slope of Drag versus Area for this data is 0.45. [Slope units left out purposefully by me for sake of next question.]
What is the coeffecient of drag for the shape? .
Use three sig. figs. or N/A if there is not enough information.
3. The slope from the plot of Drag versus Area in the question above has units of
[N]
[m2]
[kgm3]
No units
[Nm2]
Respond to this Question
Similar Questions

Physics/Math
Calculate the ratio of the drag force on a passenger jet flying with a speed of 750 km/h at an altitude of 10 km to the drag force on a propdriven transport flying at onefifth the speed and half the altitude of the jet. At 10 km … 
Re: Physics/Math
Calculate the ratio of the drag force on a passenger jet flying with a speed of 750 km/h at an altitude of 10 km to the drag force on a propdriven transport flying at onefifth the speed and half the altitude of the jet. At 10 km … 
physics
Calculate the ratio of the drag force on a passenger jet flying with a speed of 850 km/h at an altitude of 10 km to the drag force on a propdriven transport flying at threefifths the speed and half the altitude of the jet. At 10 … 
College Physics
In Chapter 3 we learned that the force of air drag on an object moving rapidly through the air is proportional to v2, where v is the speed of the ball relative to the air. The same relation applies to the force of the wind on the blades … 
Physics
This problem compares some energy properties of two motor vehicles: For efficient car, use drag coefficient of .21 and a cross sectional area of 1.5m^2. For a light truck, use drag coefficient of .75 and a cross sectional area of 2.7m^2. … 
Physics
Calculate the ratio of the drag force on a jet flying at 1049 km/h at an altitude of 10.0 km to the drag force on a propdriven transport flying at 560 km/h and at an altitude of 5.00 km. The density of air is 0.380 kg/m3 at 10.0 km … 
Physics
What is the coeffecient of drag for the shape that has diameter 7.32[cm]? 
Physics (fluids)
1. You have a large wind tunnel of crosssectional area 0.61[m2]. The wind speed is 4[ms1]. Assume air density is 1 [kgm3]. The Drag is 2.3[N]. What is the coeffecient of drag for the shape that has diameter 7.32[cm]? 
Physics
Platform area = 0.027[m2]. Wind Speed = 7.1[ms1]. Air Density = 1[kg m3]. Drag = 0.39[N]. Lift = 1.45[N]. Coeffecient of Lift = Use three sig. figs. or N/A if no answer. Platform area = 0.045[m2]. Wind Speed = 5.7[ms1]. Air Density … 
Physics
A mixing beater consists of three thin rods, each 10.9 cm long. The rods diverge from a central hub, separated from each other by 120°, and all turn in the same plane. A ball is attached to the end of each rod. Each ball has crosssectional …