A balanced wye-connected three-phase source has line-ta-neutral voltages of 440 V rms. Find the rms line-ta-line voltage nlagnitude. If this source is applied to a wye-connected load composed of three 30-!1 resistances~ find the rms line-current magnitude and the total power delivered

If you were designing a bumper for a car, would you prefer it to exhibit elastic or plastic deformation? why? consider the functions of a bumper in both a minor "fender-bender" and a major collision.

An air conditioning system consist of a 5 cm diameter pipe, operating at a pressure of 200 kpa. the air initially enters the pipe at 15°c with a velocity of 20 m/s and relative humidity of 80%. if the heat supply throughout the process is 960 w, determine the relative humidity and the temperature at the outlet

The sum of the normal stresses does not change as the stress state rotates through an angle. a)-trune b)- false