What drug is called angel dust?​

Acar travels along a highway with a velocity of 24 m/s, west. the car exits the highway; and 4.0 s later, its instantaneous velocity is 16 m/s, 45° north of west. what is the magnitude of the average acceleration of the car during the four-second interval?

Awave is produced in a rope. the wave has a speed of 33 m/s and a frequency of 22 hz.

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