Suppose you see a photo showing Jupiter half in sunlight and half in shadow (that is, a first quarter Jupiter). This photo might have been taken by ________.
A) the Arecibo radio telescope in Puerto Rico
B) the Galileo spacecraft that orbited Jupiter in the 1990s
C) the Keck telescope on Mauna Kea, Hawaii
D) the Hubble Space Telescope (which orbits Earth)
Question 2
You measure the parallax angle for a star to be 0.5 arcseconds. The distance to this star is
A) 0.5 light-year.
B) 2 parsecs.
C) 5 light-years.
D) 0.5 parsec.
E) 5 parsecs.
Global view of Mars as seen by the Viking 1 orbiter in 1980, showing the Valles Marineris (center)
An X-ray showing pneumonia.
The Dose-Effect Relationship, Showing (A) Drug Potency and (B) Drug Efficacy (Or Effectiveness)
Suppose that we have a sample space with five equally likely experimental outcomes: E1, E2, E3, ...
An electrochemical cell is based on these two half-reactions
X-ray showing pneumonia. Fluid and blood cells fill the lungs