What is the Kinematic Indeterminacy for the given frame without axial deformation?
When two plates are placed end to end and are jointed by cover plates, the joint is known as ____ .
The surface integral \( \int_S x^2 \, dS \) over the upper hemisphere
\[ z = \sqrt{1 - x^2 - y^2} \]
with radius 1 is ..........