Science with an ngVLA: How Do Cold Gas Outflows Shape Galaxies?
  The ngVLA will obtain breakthrough observations of the cold phases (molecular
and atomic) of galactic outflows. These observations will be key to study the
driving mechanisms of cold winds, the fate of the gas, the mass-loss rates, the
conditions that trigger cold outflows, the fraction of gas that escapes
galaxies, the effects of winds on suppressing star formation and slowing black
hole growth, the statistical properties of outflows, and the relation between
large scale outflows and UFOs and BAL outflows. Finally, we highlight the ngVLA
complementarity with existing and planned facilities, such as ALMA/SKA,
OST/SPICA, and Lynx/ATHENA.
