Tube BCD is fixed between walls at points B and D and securely bonded to a rigid disk at point C. Attached on either side of the rigid disk are axial bars FJ and HK. A torque To is applied to the rigid disk. Let tube BCD have torsional rigidity GI, and bars FJ and HK have axial rigidity EA=6GIp/L. Find the reactions at B, D, F, and H. B GI P Rigid disk 2L/3 EA H H Rigid disk T. 0 L/3 T C D C K L/3 L/3 EA F L/3