A tank car with a hole in the bottom is dumping its load so its total mass as a function of time is given by m(t) = m,( 1 - sot), where a, and m, are constants. The car sits on a frictionless track and is attached to a spring with a spring constant KO.

Afluid flows with a velocity field given by v=(x/t)i.. determine the local and convective accelerations when x=3 and t=1.

Apressure vessel with an r/t 20 cannot be treated as thin walled vessel. a)-trune b)- false

An electric kettle is made out of stainless steel, weighs two pounds (when empty) and is equipped with a heating element that consumes 2 kw of electricity. assuming that the water and the kettle are at the same uniform temperature at any moment of time, calculate the shortest possible time to bring 2 quarts of water from room temperature to the onset of boiling