In a young’s double-slit experiment, the angle that locates the second dark fringe on either side of the central bright fringe is 5.4. find the ratio d/ of the slit separation d to the wavelength of the light. (d / λ) =?

4. who was the first one to measure the speed of light and conclude that it is finite? 5. who was the first philosopher who thought the speed of light is finite? 13. what is the speed of light numerically? 14. give an example of something moving faster than light 15. give an example for some particles or waves that

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?

A17,250 kg rocket is pushed with a thrust of 6,450,284 n. what is the acceleration of the rocket?