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(1) A notebook computer wire carries 1.5 A. How many electrons pass through the wire each second? (2) A 50-W and 100-W light bulbs are both designed to operate at 120 V. Which one has a lower resistance? Explain your answer.
(3) Two resistors, with 3.0 and 6.0 Ohms each, are connected in series. What is the equivalent resistance of this combination?
The generator at a power plant produces AC at 29,000 V. A transformer steps this up to 305,000 V for transmission over power lines, how many turns must there be in the output coil
Chiana is stalking a fly of mass 0.10 g, but the fly gets caught in a spider's web. What is the value of the effective spring stiffness constant k for the web
In 2000, NASA placed a satellite in orbit around an asteroid. Consider a spherical asteroid with a mass of 1.00×1016kg and a radius of 9.90km, What is the escape speed from the asteroid
A truck horn emits a sound with a frequency of 246 Hz. The truck is moving on a straight road with a constant speed. what is the speed of the truck
Smoke particles in the air typically have masses of the order of 10 to 16 kg. The Brownian motion (rapid, irregular movement) of these particles, resulting from collisions with air molecules, can be observed with microscope.
An unbanked circular highway curve on level ground makes aturn of 90 degrees. What is the minimum length of the curve in miles
A series RCL circuit includes a resistance of 298 ohm, an inductive reactance of 648 ohm, and a capacitive reactance of 415 ohm. The current in the circuit is 0.634 Amps. What is the Voltage of the alternator?
a uniform 30kg ladder length 7.50m leans against a smooth vertical wall. the base of the ladder is 12 ft from the wall.
An electron passes through a point 2.71 cm from a long straight wire as it moves at 36.3% of the speed of light perpendicularly toward the wire
The temperature of a gold bar rises by 10.0°C when it absorbs 0.677 kJ of energy by heat. Determine the specific heat of gold
a bowling ball has a mass of 7.2 kg and radius of 0.11m. a billiard ball has a mass of 0.38 kg and a radius of 0.028 m.
an electric oscillator is made with a 2.8 micro f capacitor and a 7.2 mh inductor. the capacitor is initially charged
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