are the unit vectors along x, y, and z axes respectively.
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eq12.56 dual tensor 12.15. Verify that the temporal component (M = 0) of (12.56) is the...
PLEASE ANSWER ALL OF THE QUESTIONS Question 1 1 pts Each of three objects has a net charge. Objects A and B repel each other. Objects B and C attract each other. Which one of the following table entries is a possible combination of the signs of the net charges on these three objects? A B с (1) + + - + (2) + + (3) (4) - (5) + - 0 1) 3) 0 (3) and (5) O (1)...
2. Consider a mass m moving in R3 without friction. It is fasten tightly at one end of a string with length 1 and can swing in any direction. In fact, it moves on a sphere, a subspace of R3 1 0 φ g 2.1 Use the spherical coordinates (1,0,) to derive the Lagrangian L(0,0,0,0) = T-U, namely the difference of kinetic energy T and potential energy U. (Note r = 1 is fixed.) 2.2 Calculate the Euler-Lagrange equations, namely...