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Unformatted text preview: 1 For an object of diameter D, flinear=bv=Dv fquad = cv2 = (1/2)c0 A air v2 Which form of drag dominates most microbiology contexts? A) linear B) quadratic C) ?? For a sphere in air, fquad/flinear(1600 s/m2) Dv 2 For an object of diameter D, flinear=bv=D fquad = cv2 = (1/2)c0 A air v2 For a sphere in air, fquad/flinear(1600 s/m2) Dv Which form of drag dominates most sports events? A) linear B) quadratic C) ?? 3 Where are you now? A) Done with page 1 B) Done with page 2 C) Done with page 3 If you are done with page 3, try these: Like in section IIc, find the terminal velocity of an object of mass m when air drag force is... 1) ... quadratic with respect to speed ( c1 = 0, c2 0) 2) ...a combo of both linear and quadratic terms ( c1 0, c2 0) Finally, if you still have time, find an expression for v(t) from part I. (You sketched this qualitatively in IB). You will need to solve an ODE! 4 An object falling in air satisfies the ODE (from Newtons 2nd law): The equation has three dimensionful parameters (m, g, b) m d v/ d t =  mg b v a) Use those three dimensionful parameters to create Natural scales of mass (M0), length (L0), and time (T0)...
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This note was uploaded on 02/27/2012 for the course PHYSICS 2210 taught by Professor Stevepollock during the Spring '11 term at Colorado.
 Spring '11
 STEVEPOLLOCK

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