What is the averaged induced emf between the ends of the wings of a plane flying at a speed of 580 km/hr when the vertical component of the Earth's magnetic field is 2.9 times 10-5 T? The distance between the wingtips is 25m.

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.