cuatro fuerzas actúan sobre un cuerpo en un punto 0 como se muestra en la figura. Encontrar la resultante por el método gráfico​

What is the scientific definition of energy that relates to work

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.

How does the strength of the electrostatic force between an electron and a proton compare to the strength of the gravitational force between them?