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The battery charger for an MP3 player contains a step down transformer with a turns ratio of 1:32 so that the voltage of 120V available at a wall socket can be used to charge the battery pack or operate the player. What voltage does the secondary coil of the transformer provide?
A capacitor is placed parallel across a resistive load in a circuit. C=0.858*10^-6F and R=204 ohms. What fraction of the current goes through the capacitor
A particle that carries a net charge of 9.58x10^(-5)C is held in a region of constant, uniform electric field, What is the potential difference between the particle\'s initial and final positions (Vf - Vi)
An analog signal in the range 0 to +10V is to be digitized with a quantization error of less than 1% of full scale. What is the resolution of the conversion
X rays with a wavelength of 0.24nm undergo first-order diffraction from a crystal at a 53%u2218 angle of incidence. At what angle does first-order diffraction occur
Light of wavelength 5.0*10^-7 m in air is incident normally (perpendicular) on a doubled slit. The distance between the slit is 4.0*10^-4 m, Caculate the line density in slits/mm of the diffraction grating
The planet Mercury has a mass that is 5.00% of that of Earth, and its gravitational acceleration is gmercury = 3.70 m/s2. a) How long does it take for a rock that is dropped from a height of 2.63 m to hit the ground on Mercury?
Two narrow slits 0.286 mm apart are illuminated by light of wavelength 542. nm. The light falls on a screen 1.60 m away from the slits. What is the angular seperation between adjacent maxima
The radius of the moon is about 0.273 times the earth radius, its mass is about 0.0123 times the mass of the earth. Calculate your weight on the moon
A public transportation bus makes the position-time graph over a 5.00 hour interval shown below. What is the average velocity (magnitude and direction) of the bus
Two boats start together and race across a 46 km wide lake and back. Boat A goes across at 44 km/h and returns at 48 km/h. Boat B goes across at 27 km/h, and its crew, realizing how far behind it is getting, returns at 69 km/h. Turnaround times are n..
A 56.0 resistor is connected in parallel with a 117.0 resistor. This parallel group is connected in series with the 27.0 resistor. The total combination is connected across a 15.0 V battery. What is the current of the 117 resistor? What is the power ..
A C=35 pF parallel plate cApacitor has plates of area A=402cm^2. What is the electric field between its plates when it is connected across a potential difference of V=14.5 Volts
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