What is the general result of the proton-proton chain?
A. 2 He -> 8 H + energy + other products
B. Au -> Ag + Pt
C. Fe -> H + He + Li + Be + ...
D. 2 H -> Li + other products
E. 4 H -> He + energy + other products
Ans: E. 4 H -> He + energy + other products
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If the Moon were covered with water, tidal effects by Earth would find the Moon with
A) 1 tidal bulge. B) 2 tidal bulges. C) 3 tidal bulges. D) 4 tidal bulges. E) no tidal bulges.
Is gasahol a good idea? Explain
What will be an ideal response?
How many elements have been identified?
a. 92 b. 104 c. 114 d. over 200 e. none of the above
What is the correct method to subtract a vector from another vector?
a. Put one on top of the other, put a minus sign by the lower one, and then subtract as if they were numbers. b. Draw an arrow from the head of the first vector to the tail of the second. c. Add the two vectors and make the result negative. d. Turn the arrow you are subtracting around, and then add. e. Draw an arrow from the tail of the first vector to the head of the second.