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The animation is color coded as follows: Blue is water, red is oil, and brown is a wood block initially floating at the interface. A pump, which starts at t = 1 s, removes the oil. Which animation is physical? (In other words, which animation obeys the laws of physics?) Explain. Restart.
Problem authored by Peter Sheldon and Mario Belloni.
© 2004 by Prentice-Hall, Inc. A Pearson Company