Shapley used the distribution of globular clusters in the galaxy to determine that the Sun was not at the center of the Milky Way
Indicate whether the statement is true or false
TRUE
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Kirchhoff's Rules: For the circuit shown in the figure, write the Kirchhoff current equation for the node labeled A. Notice the directions of the currents!
Fill in the blank(s) with the appropriate word(s).
Compared with the wavelengths of visible light, the wavelengths of matter waves in atoms are relatively
A) long. B) short. C) neither, for all are the same.
White light is sent through a prism, and the various colors are separated in typical fashion. Which of the following colors would have the highest index of refraction in this prism?
a. green c. blue b. red d. yellow
Solenoid: Consider an ideal solenoid of length L, N windings, and radius b (L is much longer than b). A current I is flowing through the wire windings. If the radius of the solenoid is doubled to 2b, but all the other quantities remain the same, the magnetic field inside the solenoid will
A. remain the same. B. become twice as strong as initially. C. become one-half as strong as initially. D. become four times as strong as initially. E. become one-fourth as strong as initially.