The weight that will cause a wire of diameter d to stretch a given distance, for a fixed length of wire, is
A) independent of d.
B) proportional to d.
C) proportional to d2.
D) independent of what the length of the wire is.
C
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Kepler’s second law implies that as a planet’s distance from the sun increases in an elliptical orbit, its orbital speed
A. Increases. B. Decreases. C. Remains the same. D. Changes in a way we cannot determine.
The magnitude of the orbital angular momentum L of an electron in a certain atom is equal to 3.464?. Which of the following angles could NOT be the angle between the orbital angular momentum vector of the electron and an arbitrary z-direction?
A) 107° B) 90.0° C) 73.2° D) 54.7° E) 0.00°
Which of the following materials is most likely to act as an oxidizing agent?
A) Na B) Na+ C) Cl2 D) Cl- E) both A and B
A force-carrying particle is a(n)
a. lepton b. baryon c. meson d. intermediate (or gauge) boson e. hadron