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The red dot is on which structure?  _______

The green line is following which gyrus? _______

The red dots are on what specific structures? _______

(4b) Determine the vector expression for the projection of the tension in cable BC onto line OC. Enter the magnitude of the projection in the box below. 

(2b) In your supporting calculations, replace this loading by an equivalent force couple system at A. Sketch the force couple at A showing the directions and angles. Enter the value of the moment in the box below. 

(3b) Calculate the tension in the wire and the reactions against the rollers at A and at B. Enter the reaction at B in the box below. 

(4b) Determine the vector expression for the projection of the tension in cable BC onto line OC. Enter the magnitude of the projection in the box below. 

Problem 4: (30 points) This problem consists of four parts and is worth 30 points.  In the figure below, the right-angle pipe OAB is shown. A 750-N tensile force is exerted by the cable on point B. 

(4b) Determine the vector expression for the projection of the tension in cable BC onto line OC. Enter the magnitude of the projection in the box below. 

(3b) Calculate the tension in the wire and the reactions against the rollers at A and at B. Enter the reaction at B in the box below.