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A cylindrical capacitor is 0.047 m long and has a cylindrical core with a radius of 0.025 mm and a cylindrical metal sheath with a radius of 0.084 mm. The space between the core and the sheath is filled with a dielectric with a dielectric constant of [k]. If a battery provides a potential difference of 12 V to this capacitor, how much energy is stored in the capacitor in picojoules (pJ)?
To complete your master's degree in physics, your advisor has you design a small, linear accelerator capable of emitting protons, What the average power must be delivered to the stream of protons
An arrow is fired with a speed of 23 m/s at a block of Styrofoam resting on a smooth surface. The arrow penetrates a certain distance into block before coming to rest relative to it. All through this process the arrow's deceleration has the magnit..
Calculate the heat capacity of a gas sample from the following information : The sample comes to equilibrium in a flask at 298.15 K and 121.3 kPa. A stopcock is opened briefly, allowing pressure to drop to 101.3 kPa.
A 57.0-kg skier starts from rest at the top of a ski slope of height 67.0. how fast is she going after crossing the patch
A lense with a circular aperture of 1cm in diameter is just barely capable of serperating two objects, What's the wavelength of the light from the two objects
A 1.0-kg copper rod rests on 2 horizontal rails 1.0 m apart and carries a current of 50 A from 1 rail to the other.the coefficient of static friction is 0.60.What is the smallest magnetic field (vertical) that would cause the bar to slide with accele..
What is the electric potential energy of three equal positive charges of 1.33 µC while they are arranged to form a triangle 2.10 x 10-3 m on a side.
Gold has one conduction electron per atom. Its density is 19.3gr/cm3,molar mass is 197 gr/mole, determine The drift speed vd of the electrons in the wire
A 40.0-kg shell is fired from a gun with a muzzle velocity 85.0 m/s at 29.0o above the horizontal. What is the horizontal speed of the other fragment
A tennis player tosses a tennis ball straight up and then catches it after 1.65 s at the same height as the point of release. What is the acceleration of the ball while it is in flight
illustrates several of the concepts used in this problem. A single electron orbits a lithium nucleus that contains three protons (+3e). Determine the kinetic energy of the electron
A "bug-zapper" uses a voltage of 4000V provided by a transformer that is connected to a standard household source of 120V. what current is drawn from the house current and what is the power required
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