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The diatomic chain whose vibrations were considered in Section 2.8.3 had identical springs but different masses. A model with alternating spring constants but the same mass might be more appropriate for elements like Si. Calculate the dispersion relation and show that it exhibits the same general features as in Figure 2.23(b).
An arrow of mass 20 gram is shot horizontally into a bale of hay, striking the hay with a velocity of 60 m/s. Obtain the average stopping force acting on the arrow
The dipole moment of a water molecule in liquid water is 6.2×10−30 C·m, and the effective diameter of a water molecule is 2.8×10−10 m. In an earlier homework problem the effective dipole charge separation for water was calculated as 1.9×10−11 m.
Ground beef may be irradiated with high-energy electrons from a linear accelerator to kill pathogens. What is the average rate (in W) of energy deposition in the beef
A omega ?? (mass = 1672 MeV/c2) at rest decays into a kaon K? (mass = 493.7 MeV/c2) and a lambda ?0 (mass = 1115.7 MeV/c2): ?? ? K? + ?0, What is the total kinetic energy of the kaon and lambda
A positive charge of 1.000 C is located in a uniform field of 1.05×105 N/C. A negative charge of -0.500 C is brought near sufficient to the positive charge that the attractive force among the charges just equals the force on the positive charge due t..
A 13 kg dog is standing on the edge of astationary, frictionless turntable of rotational inertia 95kg·m2 and radius 2.05 m.The dog walks once around the turntable. What fraction of a fullcircle does the dog's motion make with respect to the ground?
Find theangular speed about the polar axis, as well as the translationalspeed and acceleration of a point on the earth’s surface at alatitude of 45°N. How do these values compare with the correspondingvalues for a point on the equator? (The radius of..
A catcher catches a fastball going 95mi/hr and recoils 12cm while stopping the ball in 0.005s. (mass of the ball is 280g). find the average force the ball exerts on the hand & glove
find an expression for the oscillation frequency of an electric dipole of dipole moment p and rotational inertia i for
One hundred turns of (insulated) copper wire are wrapped around a wooden cylindrical core of cross-sectional area 1.20 × 10?3 m2. how much charge flows through a point in the circuit during the change
question1a metal rod of length 20.0 cm and mass 100 g is free to slide over two parallel horizontal metallic rails
Write an equation for a wave with a frequency of 2Hz, a wavelength of 30 m, and an amplitude of 75 cm
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