How do bipolar jets relate to lobe radio galaxies?
What will be an ideal response?
The dual lobes of radio emission lie above and below the disk of galaxies like Centaurus A, suggesting that strong magnetic fields, responsible for the synchrotron radiation, also focus these jets into streams of expanding, cooling gas that creates the radio lobes about a megaparsec long.
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a. True b. False Indicate whether the statement is true or false
The Sun makes most of its energy by the proton-proton cycle
a. True b. False Indicate whether the statement is true or false
The stars ? Cygni and ? Cygni are in the constellation Cygnus. Which statement is true?
A) ? Cygni appears brighter. B) ? must be the eastern most star in the constellation. C) ? appears redder. D) ? is hotter. E) ? Cygni appears brighter.
A firecracker breaks up into two pieces, one has a mass of 200 g and flies off along the x-axis with a speed of 82.0 m/s and the second has a mass of 300 g and flies off along the y-axis with a speed of 45.0 m/s
What is the total momentum of the two pieces? A) 361 kg?m/s at 56.3° from the x-axis B) 93.5 kg?m/s at 28.8° from the x-axis C) 21.2 kg?m/s at 39.5° from the x-axis D) 361 kg?m/s at 0.983° from the x-axis E) 21.2 kg?m/s at 56.3° from the x-axis