What are the workings of a electromagnet?
pl answer
its u. r.g. e.n. t

Arotating space station is said to create “artificial gravity”—a loosely-defined term used for an acceleration that would be crudely similar to gravity. the outer wall of the rotating space station would become a floor for the astronauts, and centripetal acceleration supplied by the floor would allow astronauts to exercise and maintain muscle and bone strength more naturally than in non-rotating space environments. if the space station is 200 m in diameter, what angular velocity would produce an “artificial gravity” of 9.80 m/s^{2} 2 at the rim?

Which of the following is not a part of the respiratory system? a. pharynx b. trachea c. pancreas d. larynx

If a tank filled with water contains a block and the height of the water above point a within the block is 0.8 meter, what is the pressure at point a?