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 Homework Statement:
 The spring in the figure has a spring constant of 1000 N/m . It is compressed 13.0 cm , then launches a 200 g block. The horizontal surface is frictionless, but the block's coefficient of kinetic friction on the incline is 0.190.
 Relevant Equations:

Wsp=1/2k(delta x)^2
Wfrict=mu(k)*mgd
Delta U=mg(delta y)
I think I have all the pieces here, and am able to solve for a work through the air. But I have a power output, and don't know how to isolate it to find the distance.
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