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diamong [38]
3 years ago
8

Plz helppp me in this science question ​

Chemistry
1 answer:
Sever21 [200]3 years ago
4 0

Answer:

1. Speed is a scalar quantity that refers to "how fast an object is moving." Speed can be thought of as the rate at which an object covers distance. A fast-moving object has a high speed and covers a relatively large distance in a short amount of time.

2. a. The velocity of an object is the rate of change of its position with respect to a frame of reference, and is a function of time.

   b. Acceleration is the rate of change of velocity.

3. It can be caused by friction.

Explanation:

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