Most of the mass of the Galaxy lies in the ________
Fill in the blank(s) with correct word
dark halo
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Given the observed average distance between galaxies today, which statement is true?
A) The faster the past expansion rate, the younger the age of the universe. B) The faster the past expansion rate, the older the age of the universe. C) The age of the universe depends only on the average distance between galaxies, not on the rate of expansion.
The hardest mineral on the Mohs hardness scale is named ______________
Fill in the blank(s) with correct word
What Moon phase can be seen 7 days after the First Quarter Moon?
A) another First Quarter Moon B) Last Quarter C) Waxing Crescent D) New Moon E) Full Moon
Propanol (C3H8O) is boiled in a container at 101 kPa and where the surface temperature is 120ºC. Its saturation temperature is 97.4ºC and its heat of fusion is 697 kJ/kg. Estimate the heat transfer per unit area.
What will be an ideal response?