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On August 21, 1998, newspapers began to report that General Motors was about to introduce an infrared sensor and display system in its Cadillac models, starting in the 2000 model year. This is a heat-sensitive system that displays images of people or animals in the darkness in front of an automobile. The display is a small screen on the windshield. The range is up to 500 meters; regular headlights have a range of about 100 meters. Research the developments in this technology and see if GM approached the introduction of this technology in the same way that GE approached the introduction of the sealed beam headlight. Did GM take the most ethical approach?
A DC power supply is adjusted to give a no load output voltage of 15 volts with the AC line voltage of 115 volts rms. A full load current of 1A is drawn into the circuit and the output voltage drops to 14.89 volts.
Estimate the equilibrium temperature rise and estimate the time constant - write an expression for the estimated curve (theta as a function of time) using the numerical results obtained in parts a and b.
A circuit consist of two impedance,Z1=50/_45 ohms and Z2=25/_30 ohms, connected in parallel. They are supplied by a source whose voltage is V=50/_0 volts. Determined follows 1. the current drwan by each impedance
a 220v shunt motor driving its normal load draws an armature current of 50A. The armature resistance is 0.25ohm. determine the armature current it will draw when connected to 200V source while maintaining the armature speed and the flux per pole.
At the end, the wave totally reflects with a pi phase shift, and the reflected wave now interferes with the incident wave to yield a standing wave pattern over the line length.a) Determine the standing wave pattern for the voltage in the line.
Current Pulses over a Twisted Pair Telephone Line, A twisted pair telephone line has a constant attenuation between 0 Hz and 3300 Hz and linear phase shift with frequency
a. generator voltages egi 16.5ang0deg kvnbspnbspnbspnbspnbspnbspnbspnbspnbspnbspnbspnbspnbspnbspnbspnbspnbsp eg2
Each start/stop station contains one NO start pushbutton and one NC stop pushbutton.
Calculate the surface charge density induced on the plate as a function of the radius r from the foot of the perpendicular drawn from the charge.
A CB amplifier is operating with Rl = 10 kohm, Rc = 10 kohm, and Rsig = 100 ohm. At what current Ic should the transistor be biased for the input resistance Rin to equal that of the signal source
The reactance of a coil equals the resistance of a 10-kΩ resistor at a frequency of 5 kHz. - Determine the inductance of the coil.
Find and express ZEQ(s) as a rational function and locate its poles and zeroes.- If R = 15 kΩ, select values of L and C to locate poles at ± j200 krad/s. Where are the resulting zeroes?
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