Is made of sounds that are irregular and disorganized. a. the doppler effect c. music b. pitch d. noise
the pitch of a sound is most closely related to the a. frequency of vibrations. b. distance from the sound source. c. medium through which the sound travels. d. intensity of the sound.
Gasoline comes from petroleum, which is made from ancient living things. petroleum, therefore, contains a type of energy. a. heat b. nuclear c. biological d. chemical potential
Aball is thrown vertically upwards from the top of a tower with a speed of 100m/s.it strikes the pound near the base of the tower after 25sec . the height of the tower is
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