University Physics Volume 1 — Mechanics · Problem 28
Units and Measurement — OpenStax
Physics — University · units-and-standards
Problem
The following masses are written using metric prefixes on the gram. Rewrite them in scientific notation in terms of the SI base unit of mass: the kilogram. For example, 40 Mg would be written as 4×104 kg. (a) 23 mg; (b) 320 Tg; (c) 42 ng; (d) 7 g; (e) 9 Pg.