(Solved): Answers are Ra = 12k and Rc= 8k, show process!!thanks   A double-embedded concrete bar has be ...

Answers are Ra = 12k and Rc= 8k, show process!!thanks

A double-embedded concrete bar has been constructed using two 10-ft-long segments that each have a different cross section. The bar is subjected at point B to two external forces of 20 kip each. The cross sections of the two segments are square: section AB has dimensions 2-in x 2-in, and section BC is 1-in x 1-in. Using an elastic modulus E = 3,600 ksi for the concrete, calculate the reactions at the two walls.