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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
How fast would the train be travelling when it in Lac-Mégantic derailed. There were 5 locomotives and 72 cars filled with 113,000 litres of crude oil. The elevation was 520 m Cote
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It is the difference among potential at two points of a conductor. Please note that by potential(at a point A) ,we actually mean potential difference among point A and another
diagram of nicol prism
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