When two or more capacitors are connected in parallel across a potential difference,
A) the potential difference across each capacitor is the same.
B) each capacitor carries the same amount of charge.
C) the equivalent capacitance of the combination is less than the capacitance of any of the capacitors.
D) All of the above choices are correct.
E) None of the above choices are correct.
Answer: A
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Consider two parallel wires carrying current in the same direction. Which one of the following statements to true concerning this situation?
a) The two wires will attract each other, even if no external magnetic field is applied to the wires. b) The two wires will repel each other, even if no external magnetic field is applied to the wires. c) The two wires will attract each other, only if an external magnetic field is applied to the wires. d) The two wires will repel each other, only if an external magnetic field is applied to the wires. e) The wires will be neither attracted nor repelled from each other when no external magnetic field is applied to the wires.
The smallest unit of life that can survive and reproduce on its own is a(n):
a. atom b. cell c. molecule d. organ e. population
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A car enters a 300-m radius horizontal curve on a rainy day when the coefficient of static friction between its tires and the road is 0.600. What is the maximum speed at which the car can travel around this curve without sliding?
A) 29.6 m/s B) 33.1 m/s C) 24.8 m/s D) 42.0 m/s E) 37.9 m/s