Question

1. convert each of the following measurements to the SI base unit... the equal sign after the problems illustrates my answer that I got from doing the problems myself. can someone very if I got the answer right, and if not explain why and the process of getting the right answer

45mg=.045
125ns=.0000125
10.7ul=.0000107
12.53456kg=12,534.6

Answer 1

The answer is the first one

Answer 2

Answer: The conversions are given below.

Explanation:

Unit is defined as the quantity that is used as a standard for measurement.

S.I unit of mass if kilograms.

S.I unit of time is seconds.

S.I unit of volume is cubic meters.

The given conversions are not correct.

• For Option 1:  45 mg

Converting this into kilograms, we use the conversion factor:

$1kg=10^{6}mg$

So, $45mg\times (\frac{1kg}{10^6mg})=0.000045kg$

Hence, the correct value is 0.000045 kg

• For Option 2:  125 ns

Converting this into seconds, we use the conversion factor:

$1s=10^{9}ns$

So, $125ns\times (\frac{1s}{10^9ns})=0.000000125s$

Hence, the correct value is 0.000000125 ns

• For Option 3:  $10.7\mu L$

Converting this into cubic meters, we use the conversion factor:

$1m^3=10^{9}\mu L$

So, $10.7\mu L\times (\frac{1m^3}{10^9\mu L})=0.0000000107m^3$

Hence, the correct value is $0.0000000107m^3$

• For Option 4:  12.53456 kg

The given value is already in its S.I unit.

Hence, the correct value is 12.53456 kg