What are the signs of Q, W, and ?U for the process 
?
A. 0, -, -
B. 0, +, +
C. +, -, 0
D. +, +, 0
E. -, +, 0
F. Other (specify)
E. -, +, 0
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This figure shows the life track of a 1 solar-mass star from its beginnings in a collapsing cloud fragment until it becomes a main-sequence star. At which of the numbered points is the object generating energy primarily from hydrogen fusion?
A) Point 4 only B) Point 1 only C) Point 2 only D) Point 3 only E) Points 1, 2, and 3 F) Points 1 and 2 only
The half-life of carbon-14 is 5730 years. A sample is found to have one-eighth the original amount of carbon-14 in it. How old is the sample?
A) 5730 years B) 716 years C) 45,800 years D) 17,200 years E) none of the above
______________ is the only moon in the solar system to have retrograde motion
a. Ganymede b. Europa c. Callisto d. Titan e. Triton
Andesitic magma produces
A) andesite rocks. B) granitic rocks. C) basaltic rocks. D) metamorphic rocks.