What would help scientists probe the period from zero time to 10-43 second?
A) discovery of a white hole, with matter and energy flowing out
B) more sophisticated gravity wave detectors
C) a theory incorporating the force of gravity into existing GUTs
D) a better understanding of the nature of dark energy
E) more detailed observations of the cosmic microwave background
C
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In a double slit experiment, the intensity of the light reaching the center of he screen from one slit alone is I0 and intensity of the light reaching the center from the other slit alone is 9I0. When both slits are open, what is the intensity of the light at the minima nearest the center?
A. 4/0 B. 0 C. 8/0 D. 2/0
Helioseismology is the study of the differential rotation and magnetic field of the Sun
a. True b. False Indicate whether the statement is true or false
In 1974, astronomers sent an anticoded message as a string of 1679 _______________ and _______________
Fill in the blank(s) with correct word
Which characteristic of Venus is NOT due to the runaway greenhouse effect?
A. thick lava that creates pillow-shaped domes B. clouds that completely hide the surface C. a very slow rotation rate D. surface temperatures that are higher than Mercury's