A(n) _______________star is any star that changes its brightness significantly and repeatedly
Fill in the blank(s) with correct word
variable
Cepheid
Cepheid variable
Type I Cepheid
Type II Cepheid
You might also like to view...
The temperature at the bottom of Lake Tahoe, high in the Sierra Nevada Mountains in California, at this moment is
A) below 4°C. B) 4°C. C) above 4°C. D) uncertain.
In part (a) of this figure, three identical, equally spaced objects are dropped. In part (b), the two green blocks are moved closer together before they are dropped. In part (c), the two green blocks are combined to form one larger block. Contrasting Galileo's and Aristotle's views, what is the most plausible statement about the speed of the large green block compared with that of the small red
block? a. The green block must fall faster because it is more massive. b. The green block can be seen as two side-by-side smaller blocks falling at the same rate, hence the larger and smaller blocks fall at the same rate. c. The larger and smaller blocks fall at the same rate only in a vacuum. d. The larger block speeds up the fall of the lighter block, but only if they are tied together. e. The lighter block slows the fall of the heavier block, but only if they are tied together.
Describe the consequences of orbital resonances between the moons of Saturn and the particles that make up that planet's ring system
What will be an ideal response?
If - = 0, then the vectors and have equal magnitudes and are directed in the same direction
Indicate whether the statement is true or false