CP In experiments in which atomic nuclei collide, head-on collisions like that described in Problem 23.74 do happen, but “near misses” are more common. Suppose the alpha particle in that problem is not “aimed” at the center of the lead nucleus but has an initial nonzero angular momentum (with respect to the stationary lead nucleus) of magnitude L = p 0 b, where p 0 is the magnitude of the particle’s initial momentum and b = 1.00 × 10− 12 m. What is the distance of closest approach? Repeat for b = 1.00 × 10− 12 m and b = 1.00 × 10− 14 m.
CP In experiments in which atomic nuclei collide, head-on collisions like that described in Problem 23.74 do happen, but “near misses” are more common. Suppose the alpha particle in that problem is not “aimed” at the center of the lead nucleus but has an initial nonzero angular momentum (with respect to the stationary lead nucleus) of magnitude L = p 0 b, where p 0 is the magnitude of the particle’s initial momentum and b = 1.00 × 10− 12 m. What is the distance of closest approach? Repeat for b = 1.00 × 10− 12 m and b = 1.00 × 10− 14 m.
CP In experiments in which atomic nuclei collide, head-on collisions like that described in Problem 23.74 do happen, but “near misses” are more common. Suppose the alpha particle in that problem is not “aimed” at the center of the lead nucleus but has an initial nonzero angular momentum (with respect to the stationary lead nucleus) of magnitude L = p0b, where p0 is the magnitude of the particle’s initial momentum and b = 1.00 × 10−12 m. What is the distance of closest approach? Repeat for b = 1.00 × 10−12 m and b = 1.00 × 10−14 m.
Definition Definition Product of the moment of inertia and angular velocity of the rotating body: (L) = Iω Angular momentum is a vector quantity, and it has both magnitude and direction. The magnitude of angular momentum is represented by the length of the vector, and the direction is the same as the direction of angular velocity.
Consider an electron near the Earth's equator. In which direction does it tend to deflect if its velocity is directed in each of the following directions?
(a) downward
(b) northward
(c) westward
(d) southeastward
A proton, mass 1.67 x 10-27 kg, is projected horizontally midway between two parallel plates thatare separated by 0.10 cm, with an electrical field with magnitude 470,000 N/C between the plates.If the plates are 2.90 cm long, find minimum speed of the proton that just misses the lower plate asit emerges from the field.
An electric dipole in a uniform horizontal electric field is displaced slightly from its equilibrium position as shown in Figure P22.50, where θ is small. The separation of the charges is 2a, and each of the two particles has mass m.
(a) Assuming the dipole is released from this position, show that its angular orientation exhibits simple harmonic motion with a frequency
(b) Suppose the masses of the two charged particles in the dipole are not the same even though each particle continues to have charge q. Let the masses of the particles be m1 and m2. Show that the frequency of the oscillation in this case is
Chapter 23 Solutions
University Physics with Modern Physics (14th Edition)
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