Extension of a Spring
13284
Extension of an unfixed spring
122992
Spring force under gravity
33886
Solution to over-damped harmonic spring
56429
Extension of partial derivatives and the definition of $C^k(\overline{\Omega})$
65059
Force applied off center on an object
101098
Field extensions with(out) a common extension
118466
effect of mass of spring on period of oscillation
133978
Mechanics of Horizontal Stretching and Shrinking
79283
Internal forces in an isolated system
84425
Expanding a parent  to the height of its children
136881
Extend volume where unallocated space lies ahead of it
47839
Effective spring constant of springs in series
113708
Correspondence between Ext group and extensions (from Weibel's book)
20218
Is this field extension finite?
99121
Extending a continuous map between the boundary of two cells.
50279
Constraint force on a rod
36258
How can I make a coil with relief (volute)?