Which of the following best defines antialiasing?
A. Creating a web-ready image one pixel at a time.
B. A technique for smoothing jagged edges by adding shaded pixels.
C. Compressing an image for mobile-devices.
D. The method web servers use to determine which version of an image to display based on the user's browser.
Answer: B
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Wall posters are usually sold curled up in cylindrical cardboard tubes. If the length of the tube is 84.5 cm, and the diameter of the tube is 2.40 cm, what is the area of the poster, in cm2? (Assume the poster doesn't overlap itself.)
A) 1529 cm2 B) 203 cm2 C) 637 cm2 D) 382 cm2 E) 605 cm2
Consider three galaxies, Alpha, Beta and Gamma. An astronomer in Beta sees each of the other two galaxies moving away from her in opposite directions at 0.70c
At what speed would an observer in Alpha see the galaxy Beta moving? A) 0.82c B) 0.70c C) 0.94c D) 0.35c E) 0.57c
Consider the potential energy U(x) = (1.0 J/m3)x3 - (8 J/m2)x2 + (15 J/m)x + 8.0 J. Find the turning points of the bound motion when the energy E is 8.0 J
A) 1.0 m and 7.0 m B) 3.0 m and 4.0 m C) 2.0 m and 4.0 m D) 3.0 m and 5.0 m E) 1.44 m and 5.56 m
Earthquakes are caused by the
A) friction between diverging plates. B) sudden release of energy that is stored elastically in deforming rocks. C) expansion of Earth's crust. D) combined motion of tectonic plates.