A laser beam (? = 694 nm) is incident on two slits 0.100 mm apart. Approximately how far apart (in m) will the bright interference fringes be on the screen 5.00 m from the double slits?
a. 3.47 × 10^?3
b. 3.47 × 10^?2
c. 3.47 × 10^?4
d. 3.47 × 10^?6
e. 3.47 × 10^?5
b
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Angular and Linear Quantities: A string is wound tightly around a fixed pulley having a radius of 5.0 cm. As the string is pulled, the pulley rotates without any slipping of the string. What is the angular speed of the pulley when the string is moving at 5.0 m/s?
A. 100 rad/s B. 50 rad/s C. 25 rad/s D. 20 rad/s E. 10 rad/s
Today, an average lunar moonquake releases about as much energy as
A) an atomic bomb. B) a firecracker. C) a major U.S. city uses in 1 year. D) the Mount St. Helens eruption. E) the most powerful earthquake ever recorded.
At its current rate of consuming hydrogen, the Sun can stably shine for ________
Fill in the blank(s) with correct word
Electrons in the presence of a magnetic field transition from 4p energy states to 3d states. How many different spectral lines could be observed from these transitions?
A) one B) two C) three D) five