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A parallel-plate air capacitor of area A=18.0cm2 and plate separation d=2.60mm is charged by a battery to a voltage 68.0 V. 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?
When on the ground, Ian's weight is measured to be 700 N. When Ian is on an elevator, his apparent weight is 805 N. What is the net force on the system
When specially prepared Hydrogen atoms with their electrons in the 6f state are placed into a strong uniform magnetic field, If we don't neglect the intrinsic spin of the electrons, then how many energy levels can we observe in the ground state
Sound exits a diffraction horn loudspeaker through a rectangularopening like a small doorway. A person is sitting at an angle off to the side of a diffraction hornthat has a width D of 0.0869 m.
A phone cord is 5.1 m long. The cord has a mass of 0.165 kg. A transverse wave pulse is produced by plucking one end of the taut cord. What is the tension in the cord
A 3.00*10^2-eV electron and a 1.00*10^2-eV electron trapped in a uniform magnetic field move in circular paths in a plane perpendicular to the magnetic field. What is the ratio of the radii of their orbits?
A light source, S, is located 2.60m below the surface of a swimming pool and 1.30m from one edge of the pool. The pool is filled to the top with water.
an electron with kinetic energy e 3.20 ev is incident on a barrier of width l 0.110 nm and height u 10.0 ev.a what
A hammer strikes one end of a thick steel rail of a length 8.50 m. A microphone located at the opposite end of the tail detects two pulses of sound, Find the separation in time between the arrivals of the two pulses
Assume that a binary star system consists of two stars of equal mass. They are observed to be separated by 310 million kilometres and take 4.0 Earth years to orbit about the point midway between them.
find out the initial velocity of the ball. How fast will the electron be moving when it is very far away.
A 100 g aluminum calorimeter contains 250 g of water. The two substances are in thermal equilibrium at 10°C. Determine the specific heat of the unknown second sample
A train at rest emits a sound at a frequency of 1045 Hz. An observer in a car travels away from the sound source at a speed of 37 m/s. What is the frequency heard by the observer .
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