Help with unit conversion!
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Help with unit conversion!

[From: ] [author: ] [Date: 12-02-03] [Hit: ]
2 x10^2 =mm ----- answer .0032-First three are correct. Good job!The fourth one.........
Are these right , if not please explain/show work...Thanks

8.25mm = μm ------ answer 8250

.0024cm = nm ---- answer 24000

53nm = μm ------ answer.053

7.92 x10^-5 m= cm ----answer 792


3.2 x10^2 = mm ----- answer .0032

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First three are correct. Good job!

The fourth one... to convert meters to cm, you have to multiply the number in meters by 100, or 10^2. In this case, you would multiply 7.92 x 10^-5 by 10^2, giving you an answer of 7.92 x 10^-3, or 0.00792 cm.

You didn't specify the starting units for the fifth one!

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8.25mm = 8250μm (correct)
0.0024cm = 24000nm (correct)
53nm = 0.053μm (correct)

7.92 X 10^-5m = 792cm (incorrect)
1 m = 100 cm
7.92 X 10^-5 m = 7.92 X 10^-5 X 100 cm
>> working:
7.92 X 10^-5 X 100
= 7.92 X 10^-5 X 10^2
= 7.92 X 10^(-5+2)
= 7.92 X 10^-3
= 7.92 / 1000
= 0.00792
Hence, 7.92 X 10^-5m = 0.00792cm

3.2 x10^2 = 0.0032mm (what is the original unit??)
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