Question 2 (1 point) A charge of (-1.20x10^-4) C and a second charge of (2.700x10^-4) C are separated
by (2.500x10^-1) m. What is the electrostatic force between the two charges.
(Remember that this force could come out + or -)
Note: Your answer is assumed to be reduced to the highest power possible.
Your
x10
Answer
units

A-of 75 cm by cm by 17.5 cm up. of is 2 kg a , in ,if it is in , kg/?

What is required for an electric charge to flow through a wire? zero resistance in the wire a balance of electric potential high resistance in the wire a difference in electric potential

As part of an industrial process, air as an ideal gas at 10 bar, 400k expands at steady state through a valve to a pressure of 4 bar. the mass flow rate of air is 0.5 kg/s. the air then passes through a heat exchanger where it is cooled to a temperature of 295k with negligible change in pressure. the valve can be modeled as a throttling process, and kinetic and potential energy effects can be neglected. (a) for a control volume enclosing the valve and heat exchanger and enough of the local surroundings that the heat transfer occurs at the ambient temperature of 295 k, determine the rate of entropy production, in kw/k. (b) if the expansion valve were replaced by an adiabatic turbine operating isentropically, what would be the entropy production? compare the results of parts (a) and (b) and discuss.