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A particular inductor has appreciable resistance. When the inductoris connected to a 11.5 V battery, the current in the inductor is4.54 A. When it is connected to AC source with an rms output of11.5 V and a frequency of 69 Hz, the current drops to 1.94 A.
Find the impedance at 69 Hz. Answer in units of Ω .
Find the inductance of the inductor. Answer in units of mH.
a square thin conducting sheet that has 6.60-m-long edges has a net charge of 61.0nbspnbspmicroc. the square is in
The total electric flux from a cubical box 40.0cm on a side is 2280 Nm^(2)/C. What charge is enclosed by the box
An unmarked police car traveling a constant 85km/h is passed by a speeder. what was the speeder's speed
A 25.0 kg gold bar at 28oC is placed in a large,insulated 0.800 kg glass container at 15.0oC with2.00 kg of water at 25.0oC. Calculate the final equilibrium
A pitcher throws a fastball horizontally at a speed of 140 km/h toward home plate, 18.4 m away. (a) If the batter's combined reaction and swing times total 0.350 s, how long (in seconds) can the batter watch the ball after it has left the pitcher's h..
A group of hikers hears an echo 5 s after shouting. If the temperature is 16.0°C, how far away is the mountain that reflected the sound wave.
A drop of unknown liquid is placed at the point on a glass surface where internal reflection is occurring at ? = 48°. What is the refractive index of the liquid
A 35 mm camera using a standard 50.0 mm lens is focused on a 1.80 m tall person who is standing 3.25 m from the lens. What is the height of the flower%u2019s image on the film
Figure (a) below gives the magnitude E(x) of the electric fields that have been set up by a battery along aresistive rod of length L = 9.02 mm (Fig. belowb). The vertical scale is set by Es =4.02 ×103 V/m.
The potential at the center of a uniformly charged ring is45 kV, and 15 cm along the ring axis the potential is 33 kV. Find the ring's radius and its total charge.
a wooden crate of mass 25 kg is sitting on a horizontal cement floor. then one end of a horizontal pulley is attached
You're viewing a pair of green (wavelength=550nm) butterflies on a tree branch. What is Rayleigh's minimum angle for resolution
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