Which of the following methods of decay does not result in an element different from that of the original parent nucleus?
a. alpha followed by negative beta followed by another negative beta
b. alpha followed by beta
c. alpha followed by gamma followed by another gamma
d. alpha followed by positive beta followed by another positive beta
A
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The total momentum of a flock of identical birds could be zero only if the birds are
A) taking off from the ground. B) flying in the same direction. C) flying in different directions. D) very tired and coming down to rest.
Charges q and Q are placed on the x axis at x = 0 and x = 2.0 m, respectively. If q = ?40 pC and Q = +30 pC, determine the net flux through a spherical surface (radius = 1.0 m) centered on the origin
a. ?9.6 N / m2/C b. ?6.8 N / m2/C c. ?8.5 N / m2/C d. ?4.5 N / m2/C e. ?1.1 N / m2/C
If the principal quantum number of an electron is n = 5, which one of the following is NOT an allowed magnetic quantum number ml for the electron?
A) 2 B) 4 C) 0 D) 3 E) 5
A nonuniform 2.0-kg rod is 2.0 m long. The rod is mounted to rotate freely about a horizontal axis perpendicular to the rod that passes through one end of the rod. The moment of inertia of the rod about this axis is 4.0 kg×m2 . The center of mass of the rod is 1.2 m from the axis. If the rod is released from rest in the horizontal position, what is its angular speed as it swings through the
vertical position? a. 3.4 rad/s b. 4.4 rad/s c. 4.3 rad/s d. 5.8 rad/s e. 6.8 rad/s