If the hydrogen atom is in an n = 3, ? =2 state, what is a possible value for ? after a photon is emitted?
A)
3
B)
0
C)
4
D)
2
E)
1
E
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A 4.0 kg mass has a velocity of 10 m/s to the EAST. The 4.0 kg mass undergoes an acceleration of 4.0 
to the WEST for 3.0 sec. What is the velocity of the 4.0 kg mass at the end of the 3.0 sec interval?
A. 22 m/s to the WEST B. 2.0 m/s to the WEST C. 0.0 m/s D. 2.0 m/s to the EAST E. 22 m/s to the EAST
A boy kicks a football with an initial velocity of 28.0 m/s at an angle of 30.0° above the horizontal. What is the highest elevation reached by the football in its trajectory?
A) 11.2 m B) 10.0 m C) 12.7 m D) 9.40 m E) 41 m
Which of the following is a necessary condition for an ice mass to be a glacier?
A) Accumulation must exceed ablation. B) Basal sliding must occur. C) The ice mass must move under its own weight. D) Meltwater must be present.
Electric potential energy is measured in
1) amperes. 2) volts. 3) joules. 4) watts and electric potential is measure in 5) amperes. 6) volts. 7) joules. 8) watts