From 6275c629a3abc62b8143058b8c632bd777df5b8d Mon Sep 17 00:00:00 2001
From: Aashish <aashishadhikari693@gmail.com>
Date: Mon, 2 Oct 2023 07:12:34 +0545
Subject: [PATCH 1/2] Added mass energy equivalence

---
 physics/mass_energy_equivalence.py | 35 ++++++++++++++++++++++++++++++
 1 file changed, 35 insertions(+)
 create mode 100644 physics/mass_energy_equivalence.py

diff --git a/physics/mass_energy_equivalence.py b/physics/mass_energy_equivalence.py
new file mode 100644
index 000000000000..3b46b068d2e9
--- /dev/null
+++ b/physics/mass_energy_equivalence.py
@@ -0,0 +1,35 @@
+"""
+Einstein's E=mc^2: Mass-energy interchange,
+even in motion. Small rest mass yields big
+energy,invariant across frames. Lost energy
+means lost mass.Einstein's 1905 theory, vital
+in nuclear and particle physics.
+
+Reference:Wikipedia
+"""
+
+
+def energy_mass_equivalence(mass: float) -> str:
+    """
+    Converted mass into corresponding energy
+
+    For example:
+    >>> energy_mass_equivalence(2.1)
+    '189000000000000000.00'
+    >>> energy_mass_equivalence(3)
+    '270000000000000000.00'
+    >>> energy_mass_equivalence(3.123)
+    '281070000000000032.00'
+    >>> energy_mass_equivalence(1)
+    '90000000000000000.00'
+    """
+    energy = mass * ((3 * 10**8) ** 2)
+    return f"{energy:.2f}"
+
+
+# test
+if __name__ == "__main__":
+    import doctest
+
+    doctest.testmod(name="mass_energy_equivalence")
+

From 22d89ecfb9dcf053ecd41d33458bd297d2eb9e14 Mon Sep 17 00:00:00 2001
From: "pre-commit-ci[bot]"
 <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Date: Mon, 2 Oct 2023 01:30:56 +0000
Subject: [PATCH 2/2] [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci
---
 physics/mass_energy_equivalence.py | 1 -
 1 file changed, 1 deletion(-)

diff --git a/physics/mass_energy_equivalence.py b/physics/mass_energy_equivalence.py
index 3b46b068d2e9..af8d67217583 100644
--- a/physics/mass_energy_equivalence.py
+++ b/physics/mass_energy_equivalence.py
@@ -32,4 +32,3 @@ def energy_mass_equivalence(mass: float) -> str:
     import doctest
 
     doctest.testmod(name="mass_energy_equivalence")
-