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    A physics problem.

    I am working out of Halliday and Resnick's 7th edition Fundamentals of Physics. On page 26, Sample problem 2-7, a man goes over Niagara Falls in a steel ball. The author(s) claim that once he is in free fall, he is unaware of his increasing speed because the acceleration during the fall was...
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    Looking for a good introductory calculus based physics book.

    I am looking for a good introductory calculus based (not algebra based) physics book and was wondering which one the Anandtech community would recommend. I have the 2nd edition Wolfson and Pasacoff, but I am underwhelmed. Their derivation of acceleration for uniform circular motion is one of...
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    Paypal Question

    If I transfer funds from a checking account to paypal, how long does it take before I can use them?
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    ING Direct Referral?

    I see several posts about getting $25 when you are reffered by someone when you open an ING Direct account. Is this true? If so, can someone refer me?
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    Excel Help

    I need some help making an excel worksheet. I have two columns of data. The first contains dates and the second contains some numbers. Every week I add a couple of new rows to the worksheet. I have a chart with the first column on the x-axis and the second column on the y-axis. Every time I add...
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    DVD Decryptor Questions

    I want to rip the main movie from a DVD to my hard drive and play it there. Later I want to burn it from my hard drive to a DVD-R. In DVD Decryptor there are three modes: File, IFO, ISO. What is the difference and which one do I use?
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    Need Drivers

    I bought a used HP Pavillion 4445. The hard disk was formatted and the guy didn't have the recovery disk, I've found all the drivers online except for the audio riser card attached to the modem. From looking at it I have no clue what kind of card it is. Any help would be appreciated.