Uma partícula de carga q = 5,0 μC e massa m = 0,0004 kg, colocada num ponto P do espaço adquire aceleração de 2000 metro por segundo quadrado. Qual é o módulo do vetor campo elétrico E nesse ponto? ​

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.