Three 10-ohm resistors take the shape of a triangle, one resistor in each leg. An ohm-meter across any two points of the triangle will show the equivalent resistance to be
A) 1.4 ohms.
B) 5 ohms.
C) 6.7 ohms.
D) greater than 6.7 ohms.
Answer: C
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Coulomb's Law: A proton is located at the point (x = 1.0 nm, y = 0.0 nm) and an electron is located at the point (x = 0.0 nm, y = 4.0 nm). Find the magnitude of the electrostatic force that each one exerts on the other. (k = 1/4??0 = 9.0 × 109 N ? m2/C2, e = 1.6 × 10-19 C)
A. 1.4 × 10-11 N B. 5.3 × 10-18 N C. 5.3 × 108 N D. 5.9 × 10-15 N
Which ray passing through a thin lens does not change direction?
A. The ray going through the center of the lens. B. The ray parallel to the optical axis. C. Any ray coming from the focal point. D. All outgoing rays are deflected relative to the incoming rays.
Suppose that at a certain time a quanton has the (unrealistic) wave function shown below. 
If we were to perform an experiment to locate the quanton, what is the probability that the result will be ? 1 nm? (Assume that ? (x) = 0 at all points outside the picture.)
A. 1/8 B. 3/8 C. 1/12 D. 1/4 E. 5/12
What is the purpose of the lab, the importance of the topic, and the question you are trying to answer?
What will be an ideal response?