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A parallel-plate air capacitor of area A=20.0cm2 and plate separation d = 3.20mm is charged by a battery to a voltage 50.0V. If a dielectric material with kappa = 3.60 is inserted so that it fills the volume between the plates (with the capacitor still connected to the battery), how much additional charge will flow from the battery onto the positive plate?
Potassium iodide has an interplanar spacing of d = 0.296 nm. A monochromatic X-ray beam shows first-order diffraction maximum while the grazing angle is 7.8°. Compute the X-ray wavelength λ .
A certain automobile manufacturer claims that its deluxe sports car will accelerate from rest to a speed of 44.5 m/s in 8.45 s. Determine the average acceleration of the car
an observer that is listening to a stereo through a speaker decides to walk away from the speaker to a position that is
you are designing an electro microscope capable of resolving two features separated by 1 nm. the f-number fd is 100.
A weight (with a mass of 90 kg) is suspended from the point near the right-hand end of a uniform boom with a mass of 71kg. To support the uniform boom a cable runs from this same point to a wall (the left-hand vertical coordinate) and by a pivot on t..
two charged balls one with a charge of 5.0 micro coulombs and the other with a charge of 2.4 micro coulombs are placed
A gymnast of mass 56.0 {rm kg} hangs from a vertical rope attached to the ceiling. You can ignore the weight of the rope and assume that the rope does not stretch. Use the value 9.81 {rm m/s^2} for the acceleration of gravity.
For high frequency sounds, the ear's principle method of localization is the difference in intensity sensed by the two ears. why can't the ear reliably use this method for low-frequency sounds? doesn't the head cast a "sound shadow" regardless of ..
what is the coefficient of kinetic friction between the box and the tabletop.
2 kg block slides on a rough horizontal surface. the block hits a spring with a speed of 2.4 m/s and compresses it a distance of 11 cm before coming to rest. what is the force constant of the spring
assume it takes 7.00 minutes to fill a 30.0-gal gasoline tank.a. calculate the rate at which the tank is filled in
Ice of mass 52.0 g at -10.6° C is added to 188 g of water at 14.5° C in a 102 g glass container of specific heat 0.200 cal/g-°C at an initial temperature of 23.3° C
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