A 5.6-in.-diameter pipe is supported every 10 ft by a small frame consisting of two members as shown. Knowing that the combined weight per unit length of the pipe and its contents is 18.5 lb/ft and...

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A 5.6-in.-diameter pipe is supported every 10 ft by a small frame consisting of two members as shown. Knowing that the combined weight per unit length of the pipe and its contents is 18.5 lb/ft and neglecting the effect of friction, determine the internal forces at point J.