The electric force between two charged objects is 0.24 newtons. if the distance between them is increased by a factor of 4, what will be the new force?

What are the three ways that an object can accelerate

If steel is more dense that lake water, why can a boat float

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.