A pulse of sound is produced at the bottom of the boat the sound travels through the water and is reflected from the sea bed the sound then reaches the boat again after 1.2 seconds the speed of sound in the water is 1500 m/s how far below the bottom of the boat is the sea bed

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.