In an expression a × 10^b. — Physics1 | Mockzy

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In an expression a × 10^b.

b is order of magnitude for a ≤ 5

b is order of magnitude for 5 ≤ a ≤ 10

b is order of magnitude for a ≥ 5

a is order of magnitude for b ≤ 5

In a particular system, the unit of length, mass and time are chosen to be 10 cm

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