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anonymous

  • one year ago

Determine the length of the object shown. 1.2 cm 1.3 cm 1.25 cm 1.250 cm

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  1. anonymous
    • one year ago
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  2. arindameducationusc
    • one year ago
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    1cm=10mm here count the marks you will get 12 so 1.2 cm

  3. anonymous
    • one year ago
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    i don't get it?

  4. anonymous
    • one year ago
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    @whpalmer4 @Woodward @EclipsedStar @rajat97 @RedNeckOutLaw @Robert136 @rolotherabbit1 @rosesmarie @Leong @lily1021 @LiveLaughDie @Luigi0210 @LynFran @jabba808 @dakotahducharme @JadaTamiaMaraj @jagr2713 @jcarangui1 @Joduska @korosh23 @kennedy467 @Kaelyn78 @Keigh2015 @keshaun455 @Keshaun47 @freshkeith56

  5. anonymous
    • one year ago
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    It is 1.25cm. Notice the obvious residue approaching exactly half the least precision point.

  6. anonymous
    • one year ago
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    However, as a general rule of thumb we physicists round up 1.25cm to have it be 1.3cm because to assign more digits than the measuring device can offer is considered absurd.

  7. anonymous
    • one year ago
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    are you sure?

  8. arindameducationusc
    • one year ago
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    O ya, its 1.25.... silly mistake....

  9. anonymous
    • one year ago
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    so is it 1.25cm

  10. anonymous
    • one year ago
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    However if you are using the measured length as an intermediate number it would be 1.25cm. Because all intermediary digits are expected to increase sig figs+1. Again, it all depends on the context however I would assume this is a high school work so assumption is allowed to some degree.

  11. arindameducationusc
    • one year ago
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    nice eyes @Robert136

  12. anonymous
    • one year ago
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    i have another question like this think you can help?

  13. anonymous
    • one year ago
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    Determine the length of the object shown. 97.8 mm 97.80 mm 97 mm 98 mm

  14. anonymous
    • one year ago
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  15. arindameducationusc
    • one year ago
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    9.8 cm This time no mistake for sure.......

  16. anonymous
    • one year ago
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    there's no answer 9.8 cm

  17. arindameducationusc
    • one year ago
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    9.8cm=98mm

  18. arindameducationusc
    • one year ago
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    Got it ? @Neal9999

  19. anonymous
    • one year ago
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    are you sure?

  20. arindameducationusc
    • one year ago
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    yes 100%

  21. anonymous
    • one year ago
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    can you answer another for me then?

  22. anonymous
    • one year ago
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    Determine the length of the object shown. 7 cm 7.2 cm 72.5 mm 72.50 mm

  23. anonymous
    • one year ago
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  24. arindameducationusc
    • one year ago
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    yes sure

  25. arindameducationusc
    • one year ago
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    both C & D are right

  26. anonymous
    • one year ago
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    you can only pick one

  27. arindameducationusc
    • one year ago
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    @Robert136 Is there any difference between 72.5 and 72.50, No way there is any difference..... for accuracy I guess 72.50 is taken.

  28. anonymous
    • one year ago
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    To your surprise there is actually a difference between those numbers. Signifiant digit is assigned depending on to which extent the measuring device can offer accuracy. 72.5 implies that the measuring device was able to measure until to the tenth precision. On the other hand 72.5 could signify the from larger than or equal to 72.25 to smaller than 72.75. On the other hand the second case implies that the measuring device was able to conclude to the precision point of hundreath with absolute certainty that at thousandth the range is larger than or equal to 72.495 or smaller than 72.505. Again I'd rather keep this simple but the bottom line is there IS a difference between 72.5 and 72.50. Long story short, the difference is the level of accuracy and signifiance offerred by each. Sorry for the long explanation.

  29. arindameducationusc
    • one year ago
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    So for better precision 72.50 should be the correct answer @Robert136

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