The apparent magnitude of the Sun is -26, while Sirius has an apparent magnitude of -1; how much brighter does the Sun appear than Sirius?
What will be an ideal response?
This is a difference of 25 magnitudes. As each 5 magnitudes is a brightness factor of 100X, then 100 to the fifth power is 10 billion times brighter.
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For the first excited state (n=2) of the particle in a box of width L, what is the uncertainty in momentum?
a. 
b. 
c. 
d. 
Transits of Venus were critical in early determinations of the A.U
Indicate whether the statement is true or false
What is the MOST important role that nucleic acids play in living organisms on Earth?
A) long-term energy storage and cell structure B) basic functioning of living organisms C) the storage and transfer of information D) short-term energy storage
The type of plate boundary at which one plate collides with another and subduction occurs is called ______________
Fill in the blank(s) with correct word