HELP!!!!!!!! I WILL MEDAL AND FAN!!!!

Which is the more reasonable measurement of the distance between the tracks on a DVD:
7.4 ⋅ 10^−4 mm or 7.4 ⋅ 10^4 mm? Justify your answer

Question

HELP!!!!!!!! I WILL MEDAL AND FAN!!!!


Which is the more reasonable measurement of the distance between the tracks on a DVD: 
7.4 ⋅ 10^−4 mm or 7.4 ⋅ 10^4 mm? Justify your answer

anonymous · Answer

If they mean the distance between the tracks of a DVD as the distance between song 1 and song 2, the answer would be 10 to the -4th power

anonymous · Answer

The reason is because when the exponent is to the negative power, it means it is smaller than 0, mainly microscopic

anonymous · Answer

7.4 X 10^-4 is going to be 0.00074 mm
This sounds more "correct" than 74000 mm

anonymous · Answer

If this makes sense

anonymous · Answer

For example

anonymous · Answer

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