Series/Parallel Circuits: What is the magnitude of the potential difference between points B and C for the circuit shown in the figure? The battery is ideal, and all the numbers are accurate to two significant figures.
A. 6.0 V
B. 4.0 V
C. 3.0 V
D. 2.0 V
Answer: C
Physics & Space Science
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Simple Pendulum: A ball swinging at the end of a massless string, as shown in the figure, undergoes simple harmonic motion. At what point (or points) is the magnitude of the instantaneous acceleration of the ball the greatest?
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