An important news announcement is transmitted by radio waves to people who are 130 km away, sitting next to their radios, and by sound waves to people sitting across the newsroom, 4.0 m from the newscaster. Who receives the news first? Take the speed of sound in air to be 343 m/s.

The dissociation energy of a molecule is the energy required tobreak apart the molecule into its separate atoms. the dissociationenergy for a particular molecule is 5.48 x 10-18 j.suppose that this energy is provided by a single photon. determinethe (a) wavelength and (b) frequency of the photon

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

The passage that directs air to the lungs is called a. diaphragm. b. larynx. c. bronchi. d. pharynx.