The regions of Longitudinal waves, where the particles are closer are called O a. trough O b. crest O c. rarefaction O d. compression

48.) Mechanical waves need matter to travel through and they are only transverse waves. a. True b. False

99.. The standing waves in air in a pipe of length L that is open at both ends have a speed v. The frequencies of the three lowest harmonics are A) v/L, 2v/L, and 3v/L B) v/2L, v/L, and 3v/2L C) 2/2, 2, and 32/2 D) L/v, 2L/v, and 3L/v E) 2/3, 22/3, and 32/3

The distance between the center of a condensation and the center of an adjacent rarefaction is 47.90 cm. If the frequency is 370.9 Hz, how fast are these waves moving? x 10 (select) V cm/s