Svp aide moi je suis bloque aide qui peut me aide svp merci de avance une exoplanète est une planete qui tourne d'une autre etoile que le solei. Cette planete ne diffuse pas assez de lumiere our etre detctee depuis le terre . Pour dectecter sa presence on messure la lumiere envoyee pas de l'etoile autour de laquelle elle tourne
a quel nom port le phenomene ou l'exoplanete l'etoile et la terre sont alignes.
b comment evalue la luminosite de l'etoile quand une exoplanete passe devant
c quelle information peut on avoir sur l'exoplanete en se servant de cette technique

Astudent is performing an experiment comparing sound and light waves. the student gathers the following data. what conclusion does the student most likely make based on this data? light waves always travel the same speed; however, the speed of sound is determined by the medium that it travels through. all sound waves always have the same energy, so the temperature of the medium does not affect wave speed. light needs to vibrate particles, so it travels fastest in tightly packed solids, while sound does not need a medium, so it travels fastest in a gas. tightly packed particles in solids slow down the light waves; however, sound waves make particles bounce into each other, so they travel faster in solids.