A bus travels North for 10 miles then turns around and travels 3.75 miles South. What is the displacement of the bus?

What property is a characteristic of a substance that can be observed and does not change the identity of the substance

Ais useful when you need a simple machine to you separate two things. a. lever b. screw c. pulley d. wedge

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.