Find the direction of the magnetic field at each of the indicated points. For the following two questions consider the wire shown in the figure. (Figure 1). Part A What is the direction of the magnetic field BA at Point A? Figure < 1 of 1 O BA is out of the page. O BA is into the page. O B, is neither of nor page BA 0. A -> BA = 0. B Part B

16 Please help thank you

6) To solve the sub-part (B) only

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Problem 4: Speed deamplifier. In the figure above on the right, block 1 of mass m1 slides along an x-axis on a frictionless floor at speed 4 m/sec.Then it undergoes a one-dimensional elastic collision with stationary block 2 of mass m2 = 2m1. Next, block 2 undergoes a one-dimensional elastic collision with stationary block 3 of mass mz = 4m1. What then is the speed of block 3? Answer: 16 m/sec or 1.78 m/sec.