Two small charged spheres are located on the y-axis. One is at y = 1.00 m, the other is at y = −1.00 m, and they both have a charge of q = +1.60 µC.

(a) Determine the electric potential (in kV) on the x-axis at x = 0.670 m. kV

(b) Calculate the change in electric potential energy of the system (in J) as a third charged sphere of −3.70 µC is brought from infinitely far away to a position on the x-axis at x = 0.670 m. J

Which statement correctly describes the relationship between frequency and wavelength?

How much energy is supplied to each coulomb of charge that flows through a 12-v battery?

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.