When a vapor condenses,
A) the temperature of the substance increases.
B) the temperature of the substance decreases.
C) heat energy leaves the substance.
D) heat energy enters the substance.
Answer: C
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Indicate whether the statement is true or false
Consider a uniform horizontal electric field of 50 N/C directed toward the east. If the electric potential measured at a given point is 80 V, what is the potential at a point 1.0 m directly west of that point?
A) 30 V B) 50 V C) 80 V D) 130 V