Measuring the Doppler shift of material at various distances from the center of a galaxy can be used to construct a(n) ____________________ for that galaxy
Fill in the blank(s) with correct word
rotation curve
You might also like to view...
A rock is thrown directly upward from the edge of the roof of a building that is 66.2 meters tall. The rock misses the building on its way down, and is observed to strike the ground 4.00 seconds after being thrown
Neglect any effects of air resistance. With what speed was the rock thrown?
The International Date Line is a theoretical line following approximately the ______________ meridian
Fill in the blank(s) with correct word
The unit of electrical potential, the volt, is dimensionally equivalent to:
a. J/C. c. F×C. b. J×C. d. C/J.
Light of wavelength 610 nm is incident on a slit of width 0.20 mm, and a diffraction pattern is produced on a screen that is 2.0 m from the slit. What is the distance of the second dark fringe from the center of the central bright fringe? (1 nm = 10-9 m)
a. 1.4 cm c. 0.68 cm b. 1.2 cm d. 0.92 cm