The atomic number equals the number of protons in a nucleus
Indicate whether the statement is true or false
T
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When a warm air mass advances over a cold
surface region, it is referred to as a) a stationary front. b) an anticyclone. c) a cold front occlusion. d) simply a warm front.
A battery has an internal resistance of 4.0 W. Which of the following load resistors would have the most power delivered to it when connected across the battery?
a. 1.4 W b. 2.0 W c. 4.0 W d. 8.0 W e. 16 W
Which one of the following is TRUE?
a) Irregular galaxies rarely have star formation taking place in them. b) Galaxy collisions destroy most of the stars in the galaxies involved. c) Most elliptical galaxies contain only young stars. d) Most galaxies appear to be approaching the Milky Way Galaxy. e) There is a supermassive black hole in the center of the Milky Way Galaxy
One ray that is useful in locating the image formed by a convex mirror is the ray that is incident on the mirror in a path directed toward the focal point. This ray is reflected
A. through the center of curvature. B. directly back along its incident path. C. on a path tangent to the mirror. D. on a path parallel to the mirror axis.