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When the region between the plates of a certain capacitor is filled with a dielectric material, its capacitance increases from 120 µF (microfarads) to 540 µ F (microfarads).
What is the dielectric constant of this material?
A single electron orbits a lithium nucleus that contains three protons (+3e). The radius of the orbit is 2.20 × 10-11 m. Determine the kinetic energy of the electron.
At one end of a ripple tank 90 cm across, a 6 Hz vibratorproduces waves whose wavelength is 50 mm. Find the time the waves need to cross the tank
near earth the density of protons in the solar wind a stream of particles from the sun is 8.60 cm-3 and their speed is
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The sound source of a destroyer's sonar system operates at afrequency of 22.0 kHZ. The speed of sound in water is 1482 m/s. What is the wavelength of the emitted sound.
In the circuit shown in the figure (Figure 1) the current through the 12.0-V battery is measured to be 70.6 mA in the direction shown
a 0.340-m-long cylindrical capacitor consists of a solid conducting core with a radius of 1.00 mm and an outer hollow
A puck is sliding without friction on the ice at a speed of 2.48 m/s. Find the speed and direction of the second puck after the collision
Two cars are traveling along a straight-line in the same direction, the lead car at 25.0 m/s and the other car at 36.0 m/s. How much time does it take for the chasing car to stop
A 0.150-A current is charging a capacitor that has circular plates 10.6 cm in radius. The plate separation is 4.00 mm. What is the time rate of increase of electric field between the plates
Two lightweight rods d = 30 cm are mounted perpendicular to an axle and at 180° to each other. What is the component of the total angular momentum along the axle
two tanks are engaged in a training exercise on level ground. the first tank fires a paint-filled training round with a
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