A volume of helium gas has a temperature of 10°C. The same gas twice as hot has a temperature of

A) 20°C.
B) 12°C.
C) 283°C.
D) 293°C.
E) none of the above


Answer: D

Physics & Space Science

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A long nonconducting cylinder (radius = 12 cm) has a charge of uniform density (5.0 nC/m3) distributed throughout its volume. Determine the magnitude of the electric field 15 cm from the axis of the cylinder.

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How many oxide ions (O-2) are needed to balance the positive charge of a titanium ion (Ti+4)?

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