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A parallel-plate capacitor is constructed using a dielectric material whose dielectric constant is 3.90 and whose dielectric strength is 2.80 108 V/m. The desired capacitance is 0.300 µF, and the capacitor must withstand a maximum potential difference of 4.00 kV. Find the minimum area of the capacitor plates.
An artificial satellite circling the Earth completes each orbit in 128 minutes. (The radius of the Earth is 6.38 106 m. The mass of the Earth is 5.98 1024 kg.), Find the altitude of the satellite
The distance to a particular star, as measured in the earth's frame of reference, is 7.11 light years, How long does the trip take, according to observers on earth
A bucket filled with dirt of mass 22 kg is suspended by a rope that hangs over a pulley of mass 31kg and radius 0.15 m. everything is at first at rest.
A block is shoved up a 22 slope with an initial speed of 1.4 . The coefficient of kinetic friction is 0.70. How far up the slope will the block get
A 60 ohm resistor is connected in series with a 30x10^-6 capacitor and a generator having a maximum voltage of 120 volts, what is the phase angle of the circuit
A Girl is pushing on a 45 kg dresser with 300 N of force. The dresser has a coeficient of statice friction of 0.83 and a coeficient of kinetic friction of 0.55. How much is the force of friction on the dresser
unpolarized light with intensity io passes through two polarizers the transmission of the one is vertical and that of the other is 60 degrees to the vertical
A spherical balloon has a radius of12.5m, and is filled with helium. How large a cargo can it lift, assuming that the skin and structure of the balloon have a mass of600kg
The catapult on an aircraft carrier can take an aircraft from 0 to 209 mph (the launch speed) in 9 seconds, at which time the aircraft launches
An engine does 20000 J of work and rejects 6120 J of heat into a cold reservoir whose temperature is 285 K. What would be the smallest possible temperature of the hot reservoir.
An electrically charged bullet of mass 0.010 kg leaves thebarrel of a gun traveling parallel to the ground and perpendicularto the Earth's magnetic field at 1.400e+3 m/s. Intheory, what charge could the bullet carry in order to remain at aconstant..
The Tevatron at the Fermi National Laboratory (Fermilab) west of Chicago is a particle accelerator capable to produce protons at a total energy of one teraelectronvolt i.e. 1 TeV. What is the Lorentz gamma factor for these protons
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