The rms Electric field strength at a distance r from a 25 W light source is found to be 4.33 N/C. What is the distance r?
A. 22 m
B. 6.3 m
C. 30 m
D. 40 m
B. 6.3 m
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Orbital Angular Momentum: What is the minimum angle between the z-axis (or any other axis you choose) and the orbital angular momentum of an electron in the n = 4 state?
A. 30.0° B. 41.4° C. 60.0° D. 45.0°
A person throws three rocks off a cliff of height h at exactly the same speed , each time, but throwing rock A almost vertically upward, rock B horizontally, and rock C almost vertically downward (see the diagram below).
Which rock hits the ground with the greatest speed? (Ignore air friction.) A. Rock A B. Rock B C. Rock C D. Rocks A and C hit with the same speed, faster than B. E. All three rocks hit with the same speed.
Neutron stars are supported by _____
a. hydrogen degeneracy pressure
b. neutron degeneracy pressure
c. neutron gas pressure
d. electron degeneracy pressure
e. hydrogen gas pressure
Which of the following statements is true about the spin-orbit coupling effects on the transitions of an atom such as sodium? Assume sodium is modeled by a single electron atom