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  1. A

    Complex numbers

    How can i find The imaginary part of (1-2i)^2-i. This is what i have done so far: (1-2i)^2 (1-2i)^-i =(1-4i+4)(1-2i)^-i
  2. A

    Applying Newton's laws

    a)In terms of theta,µk and w calculate F. b)for w=400 N and µk=.25, calculate F and theta ranging from 0 to 90 in increments of 10.Graph F versus theta. c)From the general expression in part (a) calculate the value of theta for which the value of F, required to maintain constatnt speed, is a...