Four 2.0-µC point are at the corners of a rectangle with sides of length 3.0 cm and 4.0 cm. What is the electric potential (relative to infinity) at the midpoint of the rectangle? (k = 1/4??0 = 9.0 × 109 N ? m2/C2)
A) 1.3 MV
B) 2.9 MV
C) 3.5 MV
D) 7.8 MV
B
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In the first law of thermodynamics
the variables Q and W stand for
A. the heat flow out of the system and the work done on the system. B. the heat flow out of the system and the work done by the system. C. the heat flow into the system and the work done by the system. D. the heat flow into the system and the work done on the system.
Answer the following statement(s) true (T) or false (F)
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The Muslim fast of Ramadan occurs
A) during the ninth month of a 12-month lunar cycle. B) on the summer solstice. C) during a thirteenth month of the Metonic cycle. D) at the end of the Metonic cycle. E) on the spring equinox.
The capacitive reactance of a capacitor is very small at low frequencies
Indicate whether the statement is true or false