A train accelerates at a rate of 2.5 km/he/sec. During the acceleration period, it's velocity changes by 55 km/he. How long did the train accelerate?​

How do we measure or think of speed in the united states?

Which of the following bonds would be most polar? a. c-i b. c-br c. c-cl d. c-f e. c-o

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.