if anybody can help,(adsbygoogle = window.adsbygoogle || []).push({});

the problem is finding out the amount of time it takes to drain a 12oz soda can through the shotgun method. this method of draining involves opening the tab on top of the can and then punching a hole at the bottom to drain the soda out.the velocity out obviously changes as the height of the fluid inside the can changes. i've taken the point on the top surface of the fluid (having p=1atm) and the point on the bottom, at the draining hole.

im looking for dM/dt or dV/dt. can i assume the velocity on the surface=0 in comparison to the velocit of water at the bottom hole?

ive come up with dV/dt=A2*Vel. exit

ive used the mechanical energy balance to solve for ave vel exit=sqrt(4*grav*y)*Area(of exit hole)

pls tell me if im approaching this problem correctly.would appreciate any input

**Physics Forums - The Fusion of Science and Community**

Dismiss Notice

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Need help with a unsteady state mass balance problem!

Loading...

Similar Threads - Need help unsteady | Date |
---|---|

Manufacturing Help -- Need a highly viscous material | Feb 4, 2017 |

PV battery potential... need help coming up with experiment | Feb 13, 2016 |

I need help with steam boiler + generator theory | May 11, 2015 |

Finding Max Volume for evaporation need help | May 10, 2014 |

Need help understanding organic copolymers in OPV devices | Dec 29, 2013 |

**Physics Forums - The Fusion of Science and Community**