How many helium nuclei fuse together when making carbon?
A) 2
B) 3
C) 4
D) varies depending on the reaction
E) none of the above
B
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Standing waves on a string produce a series of possible tones known as ________.
Fill in the blank(s) with the appropriate word(s).
Three point charges are located on the x-axis. The first charge, 
is at x = -1.00 m; the second charge, 
is at the origin; and the third charge,
is located at x = 2.00 m. What is the force on 
?
A. 1.65 N in the negative x-direction B. 3.15 N in the positive x-direction C. 1.50 N in the negative x-direction D. 4.80 N in the positive x-direction E. 4.65 N in the negative x-direction
A gas is placed in a thermally insulated container as shown below
As the piston is slowly raised...
The earth has radius R. A satellite of mass 100 kg is in orbit at an altitude of 3R above the earth's surface. What is the force that Earth exerts on the satellite at the altitude of its orbit?
A) 61 N B) 110 N C) 9000 N D) 16,000 N