Part A In what direction is this wave traveling? Submit Part B in the positive x-direction in the negative x-direction in other direction What is the wave speed? Express your answer to two significant figures and include the appropriate units. Part C Submit f= Submit Part D H Value Submit What is the frequency? Express your answer to two significant figures and include the appropriate units. Value Submit My Answers Give Up Value Units D(6.5m, 0.65s) = My Answers Give Up What is the wave number? Express your answer to two significant figures and include the appropriate units. Units My Answers Give Up Units My Answers Give Up ? Part E At t = 0.65s, what is the displacement of the string at z = 6.5m? Express your answer to two significant figures and include the appropriate units. Value ? My Answers Give Up ? Units B ? A wave on a string is described by D(x, t) = (2.8cm) x sin [27(2/(6.0m) +t/(0.26s) +1)], where it is in m and t is in s. You may want to review (pages 566-572). For help with math skills, you may want to review: Substituting Numbers into Mathematical Expressions For general problem-solving tips and strategies for this topic, you may want to view a Video Tutor Solution of Earthquake waves.