An electric current causes a shaft in ato rotate.

Although longitudinal waves can travel through all media types what is the disadvantage of this type of wave transmission? a) he efficiency of he wave transmission is greatly diminished as the media becomes less dense b) the oscillation of one set of particles has a huge impact on neighboring particles c) particles become too close together as they bump into each other making it more likely to hit other particles down the line

Use vsepr theory to predict the molecular geometry of the molecule hcn.

Which of the following best describes the shape of earth's orbit? a.ellipticalb.circularc.spirald.figure eight