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A parallel plate capacitor has a voltage of 391 V applied across its plates, then the voltage source is removed. what is the voltage is the space between them becomes filled with mica? ( the delectric constant for mica is 5.4 and for air is 1.0006)
a)72v
b)2100 v
c)641v
d)18675v
explain why....??
The motor of a four wheeler traveling along a muddy trail generates an average power of 7.20 104 W when moving at a constant speed of 11 m/s. What is the tension in the tow rope pulling the log
q1. an object 0.600 cm tall is placed 16.5 cm to the left of the vertex of a concave spherical curvature of 22.0 cm.a.
A steel wire of mass 0.400kg and length 0.640m supports a 102 kg block. The wire is struck exactly at its midpoint causing a small displacement. How long does it take the peak of this displacement to reach the top of the wire.
A 14-A current flows into a series combination of 2.0 ?, 3.0 ?, and 6.0 ? resistors. How much power is dissipated by each resistor
A student is reading a lecture written on a blackboard. If the writing on the blackboard is 4.84 cm high, what is the height of the image on her retina
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An orchestra plays a loud symphonic passage at an intensity level of 72dB while a very soft solo is only 35dB. What is the intensity ratio for these two sounds?
A woman holds a tube of lipstick 8 cm from a spherical mirror and notices that the image of the tube is upright and one third its normal size. find what is the position of the image
The sound level 25.0m from a loudspeaker is 69.0 dB. Calculate the rate at which soundenergy is produced by the loudspeaker, assuming it to be anisotropic source.
The moon is at a mean distance Dm = 3.84 x 10^5km from the earth; the sun is at a mean distance Ds = 1.496 x 10^8km. The radius of the moon is Rm = 1.74x10^3km; the radius of the sun is Rs = 6.96 x10^5km.
In which scenario do you experience the larges acceleration? Explain why using physical principles you have learned.
A simple circuit consists of a battery connected to a lightbulb. A current of 0.243 A runs for 64.5 min, What is the voltage of the battery
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