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Which of the following statements pertaining to a vacuum flask (thermos) is NOT correct?
Q4: Which of the following is a vector
Q13: In the free expansion of a gas,<br>A)
Q17: Of the following which might NOT be
Q25: The amplitude and phase constant of an
Q30: Two identical charges, 2.0 m apart, exert
Q35: The speed of a comet in an
Q41: The electric field at a distance of
Q49: You are listening to an "A"
Q79: One degree is the same on the
Q112: Air enters a hot-air furnace at