If the Universe is truly flat, then what is the curvature and type of Universe?
a. positive, open b. zero, flat
c. negative, closed d. None of the other choices are correct.
b
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This painting shows an accretion disk around a black hole in a close binary star system. What physical law explains why matter flowing from the companion star orbits rapidly as it nears the black hole?
A) the law of conservation of angular momentum B) Newton's third law of motion C) Kepler's second law of planetary motion D) Einstein's general theory of relativity
How is it possible that orphan planets are potentially habitable, even though they do not orbit a star?
What will be an ideal response?
Which method of extrasolar planet detection is able to measure the compositions of extrasolar planet atmopsheres?
A) gravitational lensing B) Doppler technique C) transit technique D) astrometric technique
Explain how the scientific notation of 4.52 x 10^8 is the same as 452 x 10^6
What will be an ideal response?