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Chapter 44: Q23P (page 1364)
Consider thedecay withthe at rest. (a) Calculate the disintegration energy. What is the kinetic energy of (b) the proton and (c) the pion?
(a) The disintegration energy is.
(b) The kinetic energy of proton is.
(c) The kinetic energy of pion is.
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Suppose that the matter (stars, gas, dust) of a particular galaxy, of total mass , is distributed uniformly throughout a sphere of radius.A star of mass is revolving about the center of the galaxy in a circular orbit of radius.
(a) Show that the orbital speed of the star is given by
And therefore that the star鈥檚 period of revolution is
Independentof.Ignore any resistive forces.
(b) Next suppose that the galaxy鈥檚 mass is concentrated near the galactic center, within a sphere of radius less than . What expression then gives the star鈥檚 orbital period?
Which conservation law is violated in each of these proposed reactions and decays? (Assume that the products have zero orbital angular momentum.)
Question: Given figure shows the paths of two particles circling in a uniform magnetic field. The particles have the same magnitude of the charge but opposite signs. (a)Which path corresponds to the more massive particle? (b)If the magnetic field is directed into the plane of the page, is the more massive particle positively or negatively charged?
From tables 44-3 and 44-5, determine the identity of the baryon formed from quarks (a),(b),and (c).Check your answers against the baryon octet shown in Fig 44-3a.
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