A wave disturbance in which the displacement in the medium is parallel to the direction of travel of the wave is a
A. longitudinal wave
B. transverse wave
A. longitudinal wave
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A painter of mass 70 kg climbs 3.0 m up a ladder. The painter's potential energy has increased by
A. 2058 J. B. 261 J. C. 1029 J. D. 686 J. E. 210 J.
A proton moves through a small box that is isolated from all external influences and that has no matter inside it other than the single proton
Which of the following would we expect to find at some other point X [away from the proton] inside the box? A) a magnetic field B) an electric field C) Both of the above. D) an electric force E) no fields or forces of any kind
Which of the following statements is true?
A) In a p-type doped semiconductor the donor level is close to the valence band. B) In an n-type doped semiconductor the acceptor level is close to the valence band. C) In a p-type doped semiconductor the acceptor level is close to the valence band. D) In an n-type doped semiconductor the donor level is close to the valence band. E) None of the statements are true.
Three resistors of 12, 12, and 6.0 ? are connected in parallel. A 12-V battery is connected to the combination. What is the current through the 6.0-? resistor?
A) 1.0 A B) 2.0 A C) 3.0 A D) 4.0 A E) 5.0 A