To a large degree, the ________ has replaced photographic film for astronomical imaging
Fill in the blank(s) with correct word
CCD
You might also like to view...
If all the "dark matter" in the Universe were to be, somehow, instantaneously removed, which of the following would not happen?
A) The Solar System would fly apart. B) The Milky Way would fly apart. C) Clusters of galaxies would fly apart. D) The Universe would expand forever. E) all of the above
Earth's axis completes a precession every
a. 25,800 years. b. 30 days. c. day. d. 365 days.
A relativistic proton has a momentum of 1.0 × 10-17 kg • m/s and a rest energy of 0.15 nJ. What is the kinetic energy of this proton? (c = 3.00 × 108 m/s, mproton = 1.67 × 10-27 kg)
A) 1.3 pJ B) 2.5 pJ C) 1.6 pJ D) 3.0 pJ E) 2.2 pJ
In a 2-dimensional Cartesian system, the y component of a vector is known, and the angle between vector and x axis is known. Which operation is used to calculate the magnitude of the vector (taken with respect to the y component)?
a. dividing by cosine c. multiplying by cosine b. dividing by sine d. multiplying by sine