Polaris is always the polestar.
Answer the following statement true (T) or false (F)
False
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Multiple-Object Accelerating Systems: Two boxes, A and B, are connected by a horizontal string S on a horizontal floor. A very light wire pulls horizontally on box B, as shown in the figure, with a force of 100 N. The reaction force to this pull is
A. the pull that box B exerts on string S. B. the pull that string S exerts on box B. C. the pull that string S exerts on box A. D. the pull of box B on the wire. E. the force that box A exerts on box B.
What is the closest that extrasolar planets have been found to their stars?
A) nearer to their stars than Earth to the Sun B) nearer to their stars than Saturn to the Sun C) nearer to their stars than Mercury to our Sun D) unknown: we do not know the distance with enough accuracy to say
Leonardo da Vinci's Mona Lisa is 21 inches wide and 30.25 inches tall. What is the area of the painting in square centimeters?
A) 4,100 square cm B) 1,600 square cm C) 660 square cm D) 3,300 square cm E) 2,400 square cm
Star X has an apparent magnitude of 6, and star Y has an apparent magnitude of 2. How do they compare in observed brightness?
A) Star X appears brighter in the night sky than star Y. B) Star Y appears brighter in the night sky than star X. C) Star X is farther away from us than star Y. D) Star Y is farther away from us than star X.