In the diagram, 91, 92, and q3 are in a straight line. Each of these particles has a charge of -2.35 x 10-6 C. Particles qı and q2 are separated by 0.100 m and particles q2 and q3 are separated by 0.100 m. What is the net force on particle q3? Remember: Negative forces (-F) will point Left Positive forces (+F) will point Right -2.35 x 10-6 C -2.35 x 10-6 C -2.35 x 10-6 C 91 92 93 0.100 m 0.100 m​

8.29 two streams containing pyridine and acetic acid at 25°c are mixed and fed into a heat exchanger. due to the heat-of-mixing effect, it is desired to reduce the temperature after mixing to 25°c using a stream of chilled ethylene glycol as indicated in the diagram. calculate the mass flow rate of ethylene glycol needed. the heat capacity of ethylene glycol at these conditions is approximately 2.8 kj/(kg k), and the enthalpy change of mixing (δmixh) is given below.