Jawapan

2015-01-19T15:22:50+08:00
1. 25mm = 2.5 x 10^-2 = 0.025m 
2. 6.22mg = 6.22 x 10^-3 = 0.00622g
3. 3.88ns = 3.88 x 10^-9 = 0.00000000388s