Shear stress: typo + WIkipedia URL (TheAlgorithms#7896)

Author: abhishekchak52

physics/sheer_stress.py renamed to physics/shear_stress.py

@@ -1,23 +1,31 @@
 from __future__ import annotations
 
+"""
+Shear stress is a component of stress that is coplanar to the material cross-section.
+It arises due to a shear force, the component of the force vector parallel to the
+material cross-section.
 
-def sheer_stress(
+https://en.wikipedia.org/wiki/Shear_stress
+"""
+
+
+def shear_stress(
     stress: float,
     tangential_force: float,
     area: float,
 ) -> tuple[str, float]:
     """
     This function can calculate any one of the three -
-    1. Sheer Stress
+    1. Shear Stress
     2. Tangential Force
     3. Cross-sectional Area
     This is calculated from the other two provided values
     Examples -
-    >>> sheer_stress(stress=25, tangential_force=100, area=0)
+    >>> shear_stress(stress=25, tangential_force=100, area=0)
     ('area', 4.0)
-    >>> sheer_stress(stress=0, tangential_force=1600, area=200)
+    >>> shear_stress(stress=0, tangential_force=1600, area=200)
     ('stress', 8.0)
-    >>> sheer_stress(stress=1000, tangential_force=0, area=1200)
+    >>> shear_stress(stress=1000, tangential_force=0, area=1200)
     ('tangential_force', 1200000)
     """
     if (stress, tangential_force, area).count(0) != 1: