It refers to the rate of the vibration of the sound travelling through the air or the number of rarefaction and compressions that occur per unit time

How can i use "as william walking with his wife was seen" as a short sentense

Reread lines 6-7 "the survivor." determine how the tone of these differs from the preceding lines (1-5)

(05.02)on a boat, a cabin's window is in the shape of an isosceles trapezoid, as shown below. what is the area of the window? using what you know about the words "decompose," "descent," and "deport," the prefix "de" means