Cygnus X-1 and LMC X-3 Are Black Holes If the Masses

question 74

Multiple Choice

Cygnus X-1 and LMC X-3 are black holes if the masses of the unseen companions perhaps may be

• A)less than 3 solar masses.
• B)more than 3 solar masses.
• C)between 0.4 and 1.4 solar masses.
• D)less than 0.4 solar masses.
• E)not larger than the masses of the stars that we can see.

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Definitions:

Gold Or Silver

Metals that have historically served as a basis for currency and are valued for their rarity and intrinsic worth.

Missouri Compromise

An agreement passed in 1820 between pro-slavery and anti-slavery factions in the United States Congress, allowing Missouri to enter the Union as a slave state and Maine as a free state, while banning slavery in future states to the north of the 36°30' parallel.

1820

A year notable for various global events, including the Missouri Compromise in the United States, which allowed Missouri to enter the Union as a slave state and Maine as a free state.

Louisiana Purchase

A significant 1803 event where the United States purchased approximately 828,000 square miles of land west of the Mississippi River from France.