I have two questions I need help with, the first is with constant density, with thin wires: Find the moment about the x-axis of a wire of constant density that lies along the curve y=x^3 from x=0 to x=1.

#2. with variable density: Supposed that the density is = 1+k (abs value(cos(theta))(k constant). with a semicircle (radius=a) y=sqrt((a^2)-(x^2)). Any help would be fantastic! Thanks!

Question

I have two questions I need help with, the first is with constant density, with thin wires: Find the moment about the x-axis of a wire of constant density that lies along the curve y=x^3 from x=0 to x=1.

#2. with variable density: Supposed that the density is = 1+k (abs value(cos(theta))(k constant).  with a semicircle (radius=a)  y=sqrt((a^2)-(x^2)).  Any help would be fantastic!  Thanks!

anonymous · Answer

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anonymous · Answer

You can get some people to help you by tagging them like this: @Luigi0210