Process of Science: A beam of sunlight passing through a prism breaks up into a rainbow of colors. Some people thought the colors came from the prism itself
Describe a testable hypothesis of this explanation and explain how Newton showed it could not be true.
If the prism created the rainbow colors, it should be possible to shine a different color of light through it and still get many colors. Newton placed a second prism on the rainbow of light to show that when one color of light went in, only the same color came out and no new colors were produced. In this way he showed that the hypothesis that the prism produces colors was wrong and therefore that the colors were indeed intrinsic to the sunlight.
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What will be an ideal response?
Center of Mass: A 3.0-kg mass is located at (0.0 m, 8.0 m), and a 1.0-kg mass is located at (12 m, 0.0 m). You want to add a 4.0-kg mass so that the center of mass (or center of gravity) of the three-mass system will be at the origin. What should be the coordinates of the 4.0-kg mass?
A. (-3.0 m, -6.0 m) B. (-12 m, -8.0 m) C. (3.0 m, 6.0 m) D. (-6.0 m, -3.0 m)
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A) Al2O3 B) Al3O2 C) Al13O8 D) Al3O E) Al2O2
Two children start at one end of a street, the origin, run to the other end, then head back. On the way back Joan is ahead of Mike. Which statement is correct about the distances run and the displacements from the origin?
a. Joan has run a greater distance and her displacement is greater than Mike's. b. Mike has run a greater distance and his displacement is greater than Joan's. c. Joan has run a greater distance, but her displacement is less than Mike's. d. Mike has run a greater distance, but his displacement is less than Joan's. e. Mike has run a shorter distance, and his displacement is less than Joan's.