Which of the following planets can be seen as a crescent phase from Earth?
a. Mercury
b. Venus
c. Mars
d. Both a and b
e. All of the above
D
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Identify an accurate statement about the deoxyribonucleic acid (DNA) molecule
A) It has four bases that pair with each other at random. B) It looks like a spiral ladder with rails made of phosphorus and sugars. C) It has rails made up of lipids and sulfates. D) It has a total of eight bases.
The change in entropy of a mass m of a solid substance which has a latent heat of fusion L and melts at a temperature T is
a. LT/m b. mL ln(T) c. mLT d. mL/T e. L/mT
If the power factor for a series RLC circuit is 1.00, what is the phase constant?
A. 0.0
B. 30
C. 45
D. 60
E. 90
How big is the Sun compared to Earth, approximately?
A. 15 times bigger B. 5 times bigger C. 100 times bigger D. 1,000 times bigger E. 500 times bigger