At What Speed (M/s) Must a 10 Mg Object Be

Multiple Choice

At what speed (m/s) must a 10 mg object be moving to have a de Broglie wavelength of 3.3 × 10^{- 41} m ?

A) 4.1
B) 2.0 × 10¹²
C) 3.3 × 10^{- 42}
D) 1.9 × 10^{- 11}
E) 1.9 × 10¹³