Which of the Galilean moons is essentially a dirty, icy rock?
a. Titan
b. Io
c. Ganymede
d. Phoebe
e. Callisto
e
You might also like to view...
A 5.0-? resistor and a 9.0-? resistor are connected in parallel. A 4.0-? resistor is then connected in series with this parallel combination. An ideal 6.0-V battery is then connected across the series-parallel combination of the three resistors
What is the current through (a) the 4.0-? resistor? (b) the 5.0-? resistor? (c) the 9.0-? resistor?
What is this galaxy doing that keeps it from being idle?
A: The black hole at the center of the disk is sucking in the stars in the disk, which is gradually disappearing. B: It is fragmenting into different irregular parts as the universe evolves. C: It is oscillating between compressed and rarefied states, changing by a factor of two in size every million years. D: Stars are forming in the spiral arms and the disk is rotating. E: The galaxy evaporates quickly so that it will only be around for another million years.
In the shape-memory effect in metals, the martensitic transformation must be _____________.
Fill in the blank(s) with the appropriate word(s).
A _____ is a group of stars that formed together and orbit a common center of mass
A) stellar association B) star cluster C) T Tauri star D) brown dwarf