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  1. ...org/math/7/a/c/7ac3484c2b42686da65e26d84c792894.png We then differentiate once to get an expression for the velocity at any time. 圖片參考:http://upload.wikimedia.org/math/f/c/d/fcd0e5911ca23e8d4642647d8106d340...

  2. ..., we have: E/R1 = 4 ... (1) Also from the given expression of iL, we have R1/L = 20 ... (2) Then from the instant...

  3. ... owing to its shielding effect. To derive an expression for induced EMF of a rotating disc, we should refer...

  4. The fraction is for expression of the trigonometric function value of the angle between the bar and the horizontal. ...

  5. First of all, the expression of the impedance is: Z = √[R2 + (XC - XL)2...

  6. To find the rms value of it, we have the expression of the function (from t = 0 to t = 0.02) as: i(t) = 2 sin (100πt) when 0 &...

  7. So should the air resistance be the same as the expression used in: http://hk.knowledge.yahoo.com/question/question?qid=7008102400947 2009-02-17...

  8. ... 2010-04-08 20:50:45 補充: sorry, the -ve sign at the very front of the final expression has been wrongly typed. The correct expression is...

  9. ... act on different bodies. The R in your expression is NOT the normal reaction of the weight, mg. It is the...

  10. ...system and need not sum to zero over the steps of a cycle. The infinitesimal expression for heat, δQ, forms an inexact differential for processes ...

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    expression