[pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

Author: pre-commit-ci[bot]

physics/photoelectric_effect.py

@@ -59,18 +59,19 @@ def maximum_kinetic_energy(
     if in_ev:
         return max(PLANCK_CONSTANT_EVS * frequency - work_function, 0)
     return max(PLANCK_CONSTANT_JS * frequency - work_function, 0)
-    
+
+
 def work_function(
     frequency: float, kinetic_energy: float, in_ev: bool = False
 ) -> float:
     """
-    Calculates the work function of a surface using the given 
+    Calculates the work function of a surface using the given
     frequency and kinetic energy.
 
     Parameters:
         frequency (float): Frequency of the electromagnetic wave.
         kinetic_energy (float): Kinetic energy of emitted electron.
-        in_ev (bool, optional): True if frequency and 
+        in_ev (bool, optional): True if frequency and
         kinetic energy are in eV.
 
     Returns: