Answer:
9.9 x 10^-2 g*cm²/s²
Step-by-step explanation:
9.9 × 10^-9 kg*m²/s² = g*cm²/s²
1 kg*m²/s² = 1 joule(s)
1 g*cm²/s² = 1 erg(s)
britannica
1 kg = 1000g = 1x10^3 g
1 m²= 10000 cm² = 1x10^4 cm²
add the exponents 3 and 4 which = 7
-9 + 7 = -2
9.9 × 10^-9 kg*m²/s² = 9.9 x 10^-2 g*cm²/s²