Arvin the Ant travels 30 cm eastward, then 25 cm northward, and finally 10 cm westward. In what direction is Arvin now in with respect to his starting point?
a. 59° N of E
c. 29° N of W
b. 29° N of E
d. 51° N of E
D
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Define the following as they relate to website privacy issues and data security: PII, encryption, SSL, and cookies.
What will be an ideal response?
A glider on an air track is connected by a spring to the end of the air track. If it is pulled 3.5 cm in the +x direction away from its equilibrium point and then released from rest at t = 0, what is the initial phase ?
A. 0
B. 
C. 
D. 
E. 
F. Some other result (specify)
One of the first atomic bombs released energy equivalent to that of 20,000 tons of TNT explosive. How much mass was converted to energy by this explosion, given that 1000 tons of TNT produce 4.3 × 1012 J of energy
Incidentally, modern H-bombs have energy yields 1000 times as much! (c = 3.0 × 108 m/s)
Which of the following best describes the structure of an atom?
A. A positively charged nucleus circled by widely spaced negatively charged particles B. A neutral nucleus circled by particles with positive and negative charges C. A nucleus that is mostly empty space with charged particles circling around it