Which is not an example of approximate simple harmonic motion?
a. A ball bouncing on the floor.
b. A child swinging on a swing.
c. A piano string that has been struck.
d. A car's radio antenna as it waves back and forth.
A
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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.
The average force required to accelerate a 0.20-kg ball from rest to 30 m/s in 0.002 s is
A. 15,000 N. B. 3,000 N. C. 0.003 N D. 75,000 N.
In walking barefoot on red-hot coals, to prevent bits of coal sticking to your feet, it would be safer if your feet are
A) wet. B) dry. C) either of these D) none of the above
Which of the following statements describes a neutral solution?
A) [H3O+] > [OH-] B) [H3O+] < [OH-] C) [H3O+] × [OH-] ? 1 × 10-14 D) [H3O+]/[OH-] = 1 × 10-14 E) [H3O+]/[OH-] = 1