A mass of 1 slug is attached to a spring whose constant is 5 lb/ft. Initially, the mass is released 1 foot below the equilibrium
1 answer:
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Let z=x+iy be a complex number. The distance from this complex number to the origin is
Consider all options:
A. z=2+15i, then
B. z=17+i, then
C. z=20-3i, then
D. z=4-i, then
Answer: correct choice is D.