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antoniya [11.8K]
3 years ago
8

Which of the following is a measure of velocity?

Chemistry
2 answers:
padilas [110]3 years ago
6 0

The correct answer is 30 seconds

leva [86]3 years ago
3 0

Answer : The correct option is 30 meters/second, South.

Explanation :

Velocity : It is defined as the rate of change of position with respect of the time.

Velocity is a physical vector quantity, magnitude and direction are necessary to define it.

The formula of velocity is,

v=\frac{\Delta x}{\Delta t}

v = velocity

\Delta x = change in position

\Delta t = change in time

The unit of position is meter and the unit of time is second.

The SI unit of velocity is meter/second with direction.

Therefore, the correct option is 30 meters/second, South.

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The scientific models are used because they allow scientists to make predictions and make it easier for scientists to avoid using data. option A and C is correct.

<h3>What are scientific models?</h3>

The scientific models are those which is given by scientists to allow them to make prediction about anything particular on which they are working or making research for it some examples are plum pudding model for an atom and bohr's model of an atom etc.

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