The Universe contains _____________________
a. 22.7% baryonic, 4.5% WIMPs, 72.8% dark energy b. 22.7% normal, 4.5% non-Baryonic, 72.8% dark energy
c. 22.7% non-Baryonic, 4.5% normal, 72.8% dark energy d. 22.7% dark energy, 4.5% baryonic, 72.8% non-baryonic
c
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Discuss advantages and disadvantages of two methods for solving one-dimensional steady conduction problems.
What will be an ideal response?
This famous photograph taken by the Voyager spacecraft shows
A) Earth as viewed from the outskirts of the solar system. B) a close-up of the rings of Neptune. C) the cloud of gas and dust in which our solar system was born. D) the Sun as viewed from the next-nearest star.
Ocean waves with a wavelength of 120 m are coming in at a rate of 8 per minute. What is their speed?
a. 8.0 m/s b. 16 m/s c. 24 m/s d. 30 m/s e. 4.0 m/s
The half-life of 30P is 2.50 minutes. If a sample of 30P has 
nuclei present, what is its activity?
a. 
b. 
c. 
d. 
e. 