Posted by **Sean** on Sunday, April 7, 2013 at 1:40pm.

1. You have a large wind tunnel of cross-sectional area 0.61[m2]. The wind speed is 4[ms-1]. Assume air density is 1 [kgm-3]. 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 cross-sectional area 0.95[m2]. You have a set of shapes that are all the same shape except they each have a different cross-sectional area. The wind speed is held constant at 3.2[ms-1]. Assume air density is 1 [kg m-3]. 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]

[kgm-3]

No units

[Nm-2]

## Answer This Question

## Related Questions

- Physics (fluids) - 1. You have a large wind tunnel of cross-sectional area 0.61[...
- Physics - What is the coeffecient of drag for the shape that has diameter 7.32[...
- Physics - Platform area = 0.027[m2]. Wind Speed = 7.1[ms-1]. Air Density = 1[kg...
- physics - Calculate the ratio of the drag force on a passenger jet flying with a...
- Physics - Calculate the ratio of the drag force on a jet flying at 1049 km/h at ...
- Physics/Math - Calculate the ratio of the drag force on a passenger jet flying ...
- Re: Physics/Math - Calculate the ratio of the drag force on a passenger jet ...
- Physics - This problem compares some energy properties of two motor vehicles: ...
- College Physics - In Chapter 3 we learned that the force of air drag on an ...
- Physics - A mixing beater consists of three thin rods, each 10.9 cm long. The ...

More Related Questions