At which points would the river be traveling the slowest?
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Ответ:
This would be traveling at the lower reaches.
Explanation:
A river would be traveling the fastest at the upper reaches and it becomes slower at the middle reaches and the slowest at the lower reaches. A place where water flows fast in a river is where the width is narrow and the bottom is steep. (This is just examples incase you would like to keep notes).
Ответ:
2.25 kg
Explanation:
Force can be found using the following formula.
Rearrange the formula for
, mass, by dividing both sides of the formula by a.
The mass can be found by dividing the force by the acceleration. The force is 18 Newtons. 1 Newton is equal to 1 kg m/s², so 18 Newtons is equal to 18 kg m/s². The acceleration is 8 m/s².
Substitute the values into the formula.
Divide. Note that the kg m/s² in the numerator and denominator will cancel each other out.
The mass of the book is 2.25 kilograms.