Use the appropriate relativity formula given in the text to answer the following. Isabella is moving by you at a speed of 0.8c. Although 1 minute passes on your watch, how much time will you see pass on her watch?
A) 36 seconds
B) 1 minute
C) 48 seconds
D) 100 seconds
A) 36 seconds
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Hubble's Law is important because ....
A. it showed the existence of dark matter in all galaxies. B. it showed the universe is expanding. C. it can be used to estimate the age of Irregular galaxies. D. it explained the rotational velocity curves of spiral galaxies.
How many cm2 equal a m2?
A) 10-4 B) 10-2 C) 102 D) 104 E) 106
The cosmic background radiation permeating the universe has the spectrum of a 2.7-K blackbody radiator. What is the peak wavelength of this radiation? The constant in Wien's law is 0.0029 m ? K
What will be an ideal response?
The Kuiper Belt is
A) another name for the Asteroid Belt. B) a band of icy planetesimals found beyond Neptune's orbit. C) where all comets come from. D) the name given to icy bodies found between Jupiter and Saturn. E) the name given to icy bodies found between Mars and Jupiter.