You can build an interferometer yourself if you use the following components:
A) a light source, a detector screen, a flat mirror, and a glass plate.
B) a light source, a detector screen, two partially silvered mirrors, and a glass plate.
C) a light source, a detector screen, two partially silvered mirrors, a flat mirror, and a glass plate.
D) a light source, a detector screen, a partially silvered mirror, a flat mirror, and a glass plate.
E) a light source, a detector screen, a partially silvered mirror, two flat mirrors, and a glass plate.
E
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Angular Momentum: A spinning ice skater on extremely smooth ice is able to control the rate at which she rotates by pulling in her arms. Which of the following statements are true about the skater during this process? (There could be more than one correct choice.)
A. Her angular momentum remains constant. B. Her moment of inertia remains constant. C. Her kinetic energy remains constant. D. She is subject to a constant non-zero torque.
Good examples of a multicellular organisms which can exist under an enormous range of conditions are
A) tardigrades B) algae C) corals D) molds
Which statement about Io is true?
A) It is the only moon in the solar system with a thick atmosphere. B) It is thought to have a deep, subsurface ocean of liquid water. C) It is the most volcanically active body in our solar system. D) It is the largest moon in the solar system.
In the figure below, a disk (radius R = 1.0 m, mass = 2.0 kg) is suspended from a pivot a distance d = 0.25 m above its center of mass. For a circular disk,
. The angular frequency (in rad/s) for small oscillations is approximately
?
a.
4.2.
b.
2.1.
c.
1.5.
d.
1.0.
e.
3.8.