PlaqueFissureSignal électriqueHaut-parleurInterphoneSig nal sonorePeaud1d2KysteSonde463Chapitre 34 • Les signaux sonores: fréquence et utilisationS’informer avec les signaux sonores L’interphoneUtiliser un modèleTiphaine appelle Nawel avec un inter-phone. a. Quel dispositifcapte le signal so-nore lorsque Tiphaine parle?b. Quel type de signalparvient au haut-parleur ? c. Quel type de signal perçoit Nawel ?d. Représente la chaîne de transmission de l’interphone.

If the speed of a particle triples ,by what factor does its kinetic energy increase?

Calculate the ratio of h+ ions to oh– ions at a ph = 6. find the concentration of h+ ions to oh– ions listed in table b of your student guide. then divide the h+ concentration by the oh– concentration. record this calculated ratio in table a of your student guide. compare your approximated and calculated ratios of h+ ions to oh– ions at a ph = 6. are they the same? why or why not? record your explanation in table a. what is the concentration of h+ ions at a ph = 6? mol/l what is the concentration of oh– ions at a ph = 6? mol/l what is the ratio of h+ ions to oh– ions at a ph = 6? : 1

The ability to make things happen is also called a. heat b. force c. matter d. energy