How much cooler is the universe now (at an age of 4 × 1017 s) than it was at an age of 1 second?
A) Its current temperature is one hundred-millionth (10-8) the temperature at an age of 1 second.
B) Its current temperature is one hundred-thousandth (10-5) the temperature at an age of 1 second.
C) Its current temperature is one-hundredth (10-2) the temperature at an age of 1 second.
D) Its current temperature is one ten-billionth (10-10) the temperature at an age of 1 second.
D) Its current temperature is one ten-billionth (10-10) the temperature at an age of 1 second.
You might also like to view...
A simple beam AB with an overhang BC is loaded as shown in the figure. The bending moment at the midspan of AB is approximately:
(A) 8 kN?m
(B) 12 kN?m
(C) 17 kN?m
(D) 21 kN?m
The dome of water associated with a hurricane making landfall is called a
a. storm surge. b. tide. c. tidal wave. d. flood.
On what four assumptions is the principle of faunal succession based?
What will be an ideal response?
The length of a 100-meter long spaceship passing by you at 0.87c is seen to be
A) 50 m. B) 87 m. C) 100 m. D) 125 m. E) 150 m.