Tsiolkovsky rocket equation

#!/usr/bin/env python3
import math
import sys
wet = float(sys.argv[1])
dry = float(sys.argv[2])
isp = float(sys.argv[3])
g0 = 9.80665
delta_v = isp * g0 * math.log(wet / dry)
print(f"{delta_v:.1f} m/s")