Acknowledgments

I have relied upon conversations with and, especially, the written publications of many members of the physics education research community. Those who may recognize their influence include Wendy Adams, the late Arnold Arons, Stuart Field, Uri Ganiel, Richard Hake, Ibrahim Halloun, Ken Heller, Paula Heron, David Hestenes, Brian Jones, the late Leonard Jossem, Priscilla Laws, John Mallinckrodt, the late Lillian McDermott and members of the Physics Education Research Group at the University of Washington, David Meltzer, Edward “Joe” Redish and members of the Physics Education Research Group at the University of Maryland, the late Fred Reif, Rachel Scherr, Bruce Sherwood, David Sokoloff, Richard Steinberg, Ronald Thornton, Sheila Tobias, Alan Van Heuleven, Carl Wieman, and Michael Wittmann. The late John Rigden, founder and director of the Introductory University Physics Project, provided the impetus that got me started down this path in the 1980s. Early development of the materials was supported by the National Science Foundation as the Physics for the Year 2000 project; their support is gratefully acknowledged.

I especially want to thank my editors, Deb Harden and Darien Estes; Development Editor Ed Dodd; all-round troubleshooter Martha Steele; Director Content Management Science & Health Sciences, Jeanne Zalesky; Senior Associate Content Analyst, Physical Science, Pan-Science, Harry Misthos; and all the other staff at Pearson for their enthusiasm and hard work on this project. Alice Houston deserves special thanks for getting this edition underway. Thanks to Margaret McConnell, Project Manager, and the composition team at Integra for the production of the text; Carol Reitz for her fastidious copyediting; Joanna Dinsmore for her precise proofreading; and Jan Troutt and Tim Brummett at Troutt Visual Services for their attention to detail in the rendering and revising of the art. Thanks to Christopher Porter, The Ohio State University, for the difficult task of updating the Instructor’s Solutions Manual; to Charlie Hibbard for accuracy checking every figure and worked example in the text; and to David Bannon, Oregon State University, for updating the lecture slides and “clicker” questions.

Finally, I am endlessly grateful to my wife Sally for her love, encouragement, and patience, and to our many cats for nothing in particular other than always being endlessly entertaining.

Randy Knight, January 2021

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