A100 w lightbulb is brighter than a 60 w lightbulb when both operate at the same voltage of 120 v. part a if, instead, they were both operated at the same current of 0.5 a, which would be brighter? select the correct answer and explanation. if, instead, they were both operated at the same current of 0.5 , which would be brighter? select the correct answer and explanation. the 100 w bulb has a higher resistance, so it would be brighter. the 100 w bulb has a lower resistance, so it would be brighter. the 60 w bulb has a higher resistance, so it would be brighter. the 60 w bulb has a lower resistance, so it would be brighter.

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.

Drag each tile to the correct box. tiles bra i sequence

If the ama of the inclined plane below is 2, calculate the ima and efficiency. ima = efficiency =