Fill in all of these...
Altitude		Meters	Move the mouse over a box for a tool-tip. (input boxes will accept formulas, ie, 6*5-4)
Temperature		oC
Muzzle-impact spacing		Meters
Angle (A°)		° above horizontal
Mass		Grams
Diameter		Cm
Time step		seconds
And exactly two of these...
Velocity		Meters/Second
Hang time		Seconds
Apogee		Meters
Cd		Dimensionless
And we find that...
Velocity		Meters/Second
Hang time		Seconds
Apogee		Meters
Cd		Dimensionless
Impact Velocity		Meters/Second