Fill in the blanks in the following paragraph to correctly identify the properties of devices that use electromagnetism. (1 point) A(n) changes mechanical energy into . A(n) changes electric energy into . A(n) changes the voltage of an alternating current. A(n) transformer has more loops in the primary coil than in the secondary coil. A(n) transformer has loops in the primary coil than in the secondary coil.

When a 5.0kg cart undergoes a 2.2m/s increase in speed, what is the impulse of the cart

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.

What tightening torque should be used for a hexagonal head screw (not split-bolt) on a 250 kcmil conductor?