You have a set of 14 metal weights strung together by nylon fishing line at equal intervals. Each has a weight of 0.20 N. You suspend this array from the ceiling.
Which part of the array has the greatest tension in the fishing line?
A. Between weights 1 and 3
B. Above weight 1
C. Just above weight 14
D. Exactly at weight 7
Answer: B
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The point in or near an object about which the weight of the object itself exerts no net torque is the
A. impulse point B. fulcrum C. center of gravity
Which of the following statements best describes Einstein's contributions and views about quantum theory?
A) He didn't make any significant contributions to the theory, but he did accept quantum theory. B) Despite his important work on relativity, Einstein didn't make any important contributions to quantum theory, and furthermore he never really accepted quantum theory. C) Although his work on the photoelectric effect was an important contribution to quantum theory, Einstein never really accepted quantum theory. D) Although his work on the quantum theory of atoms was an important contribution, Einstein never really accepted quantum theory. E) His work on the photoelectric effect was an important contribution to quantum theory, and he accepted the theory as a correct description of the microscopic world.
If the Space Shuttle were given a much larger fuel tank, it could achieve speeds of about 90 percent of the speed of light
Indicate whether the statement is true or false
The Lewis symbol 
would be characteristic of which group?
a.
6A
b.
1A
c.
3A
d.
7A