When compared to a traditional train on a track, what is/are advantages of having a MagLev train? Choose all that apply. 1) Noise is reduced when compared to a tradition train on a track.

2) Travels far distances in a short time. It's really fast.

3) The ground doesn't rumble when the train passes.

4) There are fewer mechanical breakdowns because of the lack of fiction.

Acave rescue team lifts an injured spelunker directly upward and out of a sinkhole by means of a motor-driven cable. the lift is performed in three stages, each requiring a vertical distance of 10.0 m: (a) the initially stationary spelunker is accelerated to a speed of 4.90 m/s; (b) he is then lifted at the constant speed of 4.90 m/s; (c) finally he is decelerated to zero speed. how much work is done on the 68.0 kg rescue by the force lifting him during each stage?

Can anybody me with this? ? (picture included.)

Which is special about a dc circuit ? a. it has both series and parallel components b. it has only series or only parallel components c. charge moves in a single direction d. charge moves back and forth quickly