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A pendulum which is suspended from the ceiling of a railroad car is observed to hang at an angle of 10 degrees to the left of vertical.
Which of the following answers could describe this phenomena?
a) The railroad car is at rest.
b) The railroad car is accelerating to the left.
c) The railroad car is moving with constant velocity to the right.
d) The railroad car is accelerating to the right.
Ans- The railroad car is accelerating to the right
a transformer has a primary coil with 200 turns, and a secondary coil with 2000 turns. The input voltage is 120 VAC, and runs at 1800 watts. What is the output voltage?
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