Initial mass equals final mass
==============================

The total mass of a closed system is conserved. For more information, see
:ref:`Mass is constant`.

**Conditions:**

#. The system is isolated, i.e. no particles can leave it.

**Links:**

#. `Wikipedia <https://en.wikipedia.org/wiki/Conservation_of_mass>`__.

.. py:currentmodule:: symplyphysics.laws.conservation.mass_after_equals_to_mass_before

.. py:data:: initial_time

    Initial :attr:`~symplyphysics.symbols.basic.time`.

Symbol:
    :code:`t_0`

Latex:
    :math:`t_{0}`

Dimension:
    :code:`time`


.. py:data:: final_time

    Final :attr:`~symplyphysics.symbols.basic.time`.

Symbol:
    :code:`t_1`

Latex:
    :math:`t_{1}`

Dimension:
    :code:`time`


.. py:data:: mass

    :attr:`~symplyphysics.symbols.basic.mass` as a function of :attr:`~symplyphysics.symbols.basic.time`.

Symbol:
    :code:`m(t)`

Latex:
    :math:`m{\left(t \right)}`

Dimension:
    :code:`mass`


.. py:data:: law

    :code:`m(t_1) = m(t_0)`


    Latex:
        .. math::
            m{\left(t_{1} \right)} = m{\left(t_{0} \right)}