A star with planets orbiting in a plane that is not face-on to our line-of-sight exhibit a Doppler effect due to ________
A) the light emitted by the moving planets
B) the light reflecting from the moving planets
C) the planet gravitationally tugging the star
D) the planet's mass shifting the path of light from the star
C
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Photon Energy: What is the energy (in eV) of an optical photon of frequency 6.43 × 1014 Hz. (h = 6.626 × 10-34 J ? s, 1 eV = 1.60 × 10-19 J)
A. 2.66 eV B. 1.62 eV C. 1.94 eV D. 3.27 eV
Rank the following features in order from oldest to youngest:
a) the tectonic ridge from 3a to 3b b) crater 1a c) the smooth floor of crater 1b
A circuit consists of N resistors, all of resistance R, connected as shown below. A potential difference V is applied to the circuit. The equivalent resistance of the circuit is
a.
.
b.
An object is placed in front of a concave mirror. The object is farther from the mirror than the focal length of the mirror. The type of image reflected from the mirror is ________ and the orientation of the image is ________.
Fill in the blank(s) with the appropriate word(s).