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Phy 121
Your 'cq_1_01.2' report has been received. Scroll down through the document to see any comments I might have inserted, and my final comment at the end.
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Asst 1 Question 2
Answer the following:
How accurately do you think you can measure the time between two events using the TIMER program?
answer/question/discussion: ->->->->->->->->->->->-> (start in the next line):
I answered that already. Then you told me 1/64 of a second, which was exactly what I guessed. I didn't think I'd be exactly right, but that's what it is I guess.
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What is the shortest time interval you think you would be able to measure with reasonable accuracy?
answer/question/discussion: ->->->->->->->->->->->-> (start in the next line):
I would imagine any interval 1/64 s or longer would be measured with good accuracy. The closer you get to 1/64 s, the more margin of error. A better interval will be at 1/32 s, that way there is less error if and when an unusual case may arrive.
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How does the percent error in timing intervals change as the time between the events gets smaller?
answer/question/discussion: ->->->->->->->->->->->-> (start in the next line):
The likelihood for error in intervals gets higher as intervals decrease in length. This is because the faults of the system will be more noticeable. In events spanning hours, microseconds are of little significance.
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How accurately are you able to measure the positions of the ball and the pendulum in the initial video?
answer/question/discussion: ->->->->->->->->->->->-> (start in the next line):
I don't remember that exactly. If I'm not mistaken I had a difficult time making the distinction, and I think it was low video frame rate with respect to motion (blurry, jumpy symptom).
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about 20-30 minutes
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&#Good responses. Let me know if you have questions. &#