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  2. Statically indeterminate - Wikipedia

    en.wikipedia.org/wiki/Statically_indeterminate

    If the support at B is removed, the reaction V B cannot occur, and the system becomes statically determinate (or isostatic). [3] Note that the system is completely constrained here. The system becomes an exact constraint kinematic coupling. The solution to the problem is: [2]

  3. Exact solutions of classical central-force problems - Wikipedia

    en.wikipedia.org/wiki/Exact_solutions_of...

    A central-force problem is said to be "integrable" if this integration can be solved in terms of known functions. If the force is a power law, i.e., if F ( r ) = a r n {\displaystyle F(r)=ar^{n}} , then u {\displaystyle u} can be expressed in terms of circular functions and/or elliptic functions if n {\displaystyle n} equals 1, -2, -3 (circular ...

  4. Fixed end moment - Wikipedia

    en.wikipedia.org/wiki/Fixed_end_moment

    The fixed end moments are reaction moments developed in a beam member under certain load conditions with both ends fixed. A beam with both ends fixed is statically indeterminate to the 3rd degree, and any structural analysis method applicable on statically indeterminate beams can be used to calculate the fixed end moments.

  5. Block-stacking problem - Wikipedia

    en.wikipedia.org/wiki/Block-stacking_problem

    The first nine blocks in the solution to the single-wide block-stacking problem with the overhangs indicated. In statics, the block-stacking problem (sometimes known as The Leaning Tower of Lire (Johnson 1955), also the book-stacking problem, or a number of other similar terms) is a puzzle concerning the stacking of blocks at the edge of a table.

  6. Solutions of the Einstein field equations - Wikipedia

    en.wikipedia.org/wiki/Solutions_of_the_Einstein...

    But if one requires an exact solution or a solution describing strong fields, the evolution of both the metric and the stress–energy tensor must be solved for at once. To obtain solutions, the relevant equations are the above quoted EFE (in either form) plus the continuity equation (to determine the evolution of the stress–energy tensor):

  7. List of quantum-mechanical systems with analytical solutions

    en.wikipedia.org/wiki/List_of_quantum-mechanical...

    The free particle; The one-dimensional potentials The particle in a ring or ring wave guide; The delta potential The single delta potential; The double-well delta potential; The steps potentials The particle in a box / infinite potential well; The finite potential well; The step potential; The rectangular potential barrier; The triangular potential