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A capacitor with initial charge q0 is discharged through a resistor.
(a) In terms of the time constant τ, find how long is required for the capacitor to lose the first one-third of its charge?
x τ
(b) Determine how long is required for the capacitor to lose the first two-thirds of its charge?
A cylinder like an oil drum is being rolled across a level floor by a force ~F applied horizontally to the top. find the force of friction between the cylinder and the floor
String 1 in the figure has linear density 2.90 and string 2 has linear density 3.20 . A student sends pulses in both directions by quickly pulling up on the knot, then releasing it. Consider the pulses are to reach the ends of the strings simultaneou..
500 mL of a liquid with a coefficient of volume expansion of 267x10-6/oC fills to the brim a container that has a coefficient of volume expansion of 99x10-6/oC. how much of the liquid will overflow the container
a person travels by car from one city to another with different constant speeds between pairs of cities. she drives for
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The maximum magnetic field, or Bo, is 0.010 T in an electromagnetic wave. What is the average intensity of this wave
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a swift moving hawk is moving due west with a speed of 30 ms 5.0 s later it is moving due north with a speed of 20 ms.
Suppose the uranium nucleus was at rest just before the decay. If the α particle is emitted at a speed of 1.74×107 m/s, illustrate what would be the recoil speed of the thorium nucleus?
As a marble with a diameter of 2.0 cm rolls down an incline, its center moves with a linear acceleration of 3.5 m/s^2. What is the angular acceleration of the marble
A silt of width a is illuminated bymonochromatic light of wavelength 650nm at normal incidence. Calculate the value of a , when the first minimum falls at an angle of diffracction 30 degree
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