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OpenStudy (anonymous):
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
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OpenStudy (campbell_st):
well 10^4 = 10000 mm x 7.4 10^-4 = 0.0001 mm x 7.4 so what you want is the smaller measure
OpenStudy (anonymous):
so i want 10^-4 because i want the smallest number...
OpenStudy (campbell_st):
correct
OpenStudy (anonymous):
thank u have a great day :)
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