Một vật dao động điều hoà có li độ x = 5cos(5t + /4)cm. Tìm chu kỳ và tần số dao động và li độ vật ở thời điểm t = 1,5s.

Two vectors are shown. which statement best compares the vectors? vector x has greater magnitude than vector y. vector y has greater magnitude than vector x. the vectors have the same displacement. the vectors have the same direction.

An object's buoyant force and weight mean the same thing. a. trueb. false

As microwave light travels through a liquid, it moves at a speed of 2.2 x 108 m/s. if the frequency of this light wave is 1.1 x 108 hz, what is the wavelength of this microwave?