To find the equivalent resistance of the combination of resistors shown below by the method of possibly repeated applications of combining resistors in series and /or combining resistors in parallel, the first step would be which of the following?
a.
Combine the 6.0 and the 7.0 in series.
b.
Combine either the 4.0 and the 10.0 in parallel or the 7.0 and the 10.0 in parallel first, since either could be the first step with the other the second step.
c.
Combine the 4.0 and the 10.0 in series.
d.
Combine the 6.0 , the 4.0 , and the 10.0 in series in a single step.
Question 2A particle moving along the x axis has a position given by x = 54t 2.0t3 m. At the time t = 3.0 s, the speed of the particle is zero. Which statement is correct?
a. The particle remains at rest after t = 3.0 s.
b. The particle no longer accelerates after t = 3.0 s.
c. The particle can be found at positions x < 0 m only when t < 0 s.
d. All of the above are correct.
e. None of the above is correct.
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