Units, prefixes and engineering notation 59
13. Rewrite 0.003 mA in μA
14. Rewrite 2025 kHz as MHz
15. Rewrite 5 × 10 4 N in kN
16. Rewrite 300 pF in nF
17. Rewrite 6250 cm in metres
18. Rewrite 34.6 g in kg
In problems 19 and 20, use a calculator to evaluate
in engineering notation.
19. 4.5 × 10
−7
× 3 × 10
4
20.
1.6 × 10 −5
25 × 10 3
100 × 10 −6