Một thiết bị phát âm có công suất P di chuyển dọc theo trục Ox, môtn thiết bịt hu thnah đặt tren trục Oy

i dont understand

Explanation:

is this another language?

the amount of current in the coil

the skeletons of most mammals reach a certain size and then stop growing. however, many animals, including some mammals, keep growing throughout their lives. kangaroos, for example, just keep growing and growing until they die. also, the longer an animal lives the greater the chance it might catch some deadly disease.