Mon 17 Apr, 2006 05:51 pm - Excited hydrogen atoms are all in the n = 3 state.
How many different photon energies could possibly
be emitted as these atoms return to the
ground state?
(1) 1 (3) 3
(2) 2 (4) 4
The answer... (view)
Sat 10 Dec, 2005 04:39 pm - How can one reconcile Jefferson's acceptance of slavery with his lifelong devotion to freedom? In his film biography, Ken Burns frames this question as both the central paradox of... (view)
Sat 26 Nov, 2005 09:15 pm - A 60kg boy is on a 15kg sled. He is pushed along a level path of snow where uk(coefficient of kinetic friction)=0.05.
What total force will accelerate it at 1.3 m/s/s?
Using an answer to a... (view)
Thu 17 Nov, 2005 08:37 pm - In the short story, The Masque of Red Death by Edgar Allen Poe, I have a question I hope you can answer as fully as possible.
In the Second paragraph, the brief characterization of Prince... (view)
Thu 17 Nov, 2005 08:36 pm - Hi!,
I hope I'm finding you in the best of health.
In the short story, The Devil and Daniel Webster by Stephen Vincent Benet, I have a question I hope you can answer as fully as possible:... (view)
Sat 5 Nov, 2005 08:47 pm - Why do these 2 following problems have intial velocity equalling zero?
1. A baseball pitcher throws a fastball at a speed of 44 m/s. The acceleration occurs as the pitcher holds the ball in his... (view)
