Twenty m3/hr of air at 600 kpa, 330 k enters a well-insulated, horizontal pipe having a diameter of 1.2 cm and exits at 120 kpa. assume steady state and use the ideal gas model for the air. also assume constant specific heat, p1.007 kj/kg-k for air at 330 k. determine the mass flow rate, in kg/s, and the exit velocity, in m/s.

Acharge q experiences no net force at a particular point in space. which of the following situations described below must always be true? -there are no other charges nearby. -if there are other charges nearby, they must all have the same sign as q. -if there are other charges nearby, they must all have the opposite sign of q. -if there are other charges nearby, the total positive charge must equal the total negative charge. -none of the above