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Consider an electric dipole with moment of inertia I, consisting of point charges +q and -q which are separated by a fixed distance d.
(a) Determine the net force and net torque on the dipole in a uniform electric field E as a function of the angle Φ between dipole moment vector and the direction of the field. Include a clear figure with relevant items labeled.
(b) Now suppose that the dipole is released from rest close to its equilibrium orientation. What is the effective torsion constant, k, for this system?
(c) Calculate the frequency ω of small oscillations about the equilib-rium orientation.
(d) Now the dipole is brought into the field of a fixed point charge Q. which is at distance r from +q and distance (r + d) from q. We observe that the dipole accelerates towards Q. Is Q positive or negative?
(e) If the dipole has mass m, what will be the initial acceleration of the dipole in case (d)?
A large tank is divided into two parts by a partition. The first part contains 5 kg of refrigrtant-134a at 80oC, 900 kPa. The other part contains 3 kg of refrigerant-134a at -2oC with a vapor mass fraction of 46 percent.
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A solenoid is made by winding 1961 turns of wire into a hollow cylinder 1.1 cm in diameter and 29.9 cm in length. Find the inductance of the solenoid
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An electron is at the origin. (a) Calculate the electric potential VA at point A, x = 0.160 cm. V (b) Calculate the electric potential VB at point B, x = 0.170 cm. V What is the potential difference VB - VA? V
A satellite has a mass of 5825 kg and is in a circular orbit 4.34 × 105 m above the surface of a planet. What would be the true weight of the satellite if it were at rest on the planet's surface
A skier is sliding downhill at 5 m/s when she reaches an patch on which her skies move freely with neglegible friction. What is the speed of the skier at the bottom of the icy patch
A long cylindrical wire (radius= 2 centimeter) carries a current of 40 Amp that is uniformly distributed over a cross section of the wire. Evaluate the magnitude of the magnetic field at a point
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