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An aluminum block, m1 = 3.00 kg, and a copper block, m2 = 1.14 kg, are connected by a light string over a frictionless pulley. They sit on a steel surface as shown in the figure below, where θ = 45.0°. (See the table below for the appropriate coefficients of friction).

Determine the sum of the magnitudes of the forces of friction acting on the blocks.

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Where is the table?
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