A star with initial mass M converts its H atoms into Fe at a
constant rate so that all H is returned into Fe in time t. The star
loses no mass through stellar winds.
An engineer restricts the star to emit radiation only in the -x
direction in the Cartesian coordinate system. How does the velocity
of the star evolve with time? Assume that the star's initial
velocity is zero.
A star with initial mass M converts its H atoms into Fe at a constant rate so that all H is returned into Fe in time t.
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