While Traveling the Galaxy in a Spacecraft,you and a Colleague

question 33

Multiple Choice

While traveling the galaxy in a spacecraft,you and a colleague set out to investigate the 10⁶M_⨀ black hole at the center of our galaxy.He hops aboard an escape pod and drops into a circular orbit around the black hole,maintaining a distance of 10,000 km,while you remain much farther away in the spacecraft.After doing some experiments to measure the strength of gravity,your colleague signals his results back to you using a green laser.What would you see? Hint: you will need to calculate the location of the event horizon.

• A)You would see his signals unaltered in wavelength because he is orbiting well outside the event horizon of the black hole.
• B)You would see his signals shifted to a much redder wavelength because he is close to the event horizon.
• C)You would see nothing,because your colleague has crossed the event horizon around the black hole.
• D)You would see nothing,because no light can escape the gravitational pull of a black hole no matter how far he is from it.
• E)You would see his signals shifted to a much bluer wavelength because black holes can make highly energetic light.

Identify factors that influence productivity growth.

Understand the relationship between labor productivity, employment growth, and output per capita.

Evaluate the role of computers and technology in productivity growth.

Distinguish between basic research and applied research and their impact on productivity.

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Definitions:

Chromatin

The complex of DNA and proteins, primarily histones, that forms the chromosomes within the nucleus of eukaryotic cells.

Homochromatin

Incorrect term, possibly meant to refer to Heterochromatin or Euchromatin, which are forms of chromatin in the genome. NO.

Eukaryotic Transcription Factors

Proteins in eukaryotic cells that bind to DNA sequences to regulate the transcription of genetic information from DNA to messenger RNA.

CAPs

Cyclic AMP Receptor Proteins, which are involved in the regulation of gene expression in response to fluctuations in cellular levels of cyclic AMP.