Figure shows a stationary arrangement of two crayon boxes and three cords. Box A has a mass of 11.0 kg and is on a ramp at angle θ = 30.0?; box B has a mass of 7.00 kg and hangs on a cord. The cord connected to box A is parallel to the ramp, which is frictionless.

(a) What is the tension in the upper cord, and

(b) What angle does that cord make with the horizontal?

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B.