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  2. How Does Changing Drag Coefficient Affect Terminal Velocity in...

    www.physicsforums.com/threads/how-does-changing-drag...

    The equation you found, dvt/dc= (-1/2) (k) (c^ (-3/2)), is known as the sensitivity equation. It shows the relationship between the change in the terminal velocity (dvt) and the change in the drag coefficient (dc). The "k" in this equation is a constant that represents the combined effects of the air density, cross-sectional area, and mass of ...

  3. Understanding Δx: The Meaning and Importance of Uppercase Delta...

    www.physicsforums.com/threads/understanding-dx-the-meaning...

    Sep 26, 2011. Mean. In summary, the uppercase delta symbol, Δ, represents the difference between two values or the amount of change in a variable. In elementary math, it is often used to find the slope of a line, while in calculus it is used to find instantaneous velocity. The lowercase delta symbol, δ, is used to represent uncertainty or a ...