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8090 [49]
3 years ago
12

A runner travels at a constant speed of 4 m/s. What happens to the velocity of the runner when the runner changes direction?

Chemistry
1 answer:
ANTONII [103]3 years ago
5 0

Answer:

4m/s in the direction of the turn

Explanation:

The velocity of an object is the rate of change of its position with respect to a frame of reference.

Assuming the runner stays the same speed as he turns, his velocity will be 4m/s in the speed he turns.

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300 moles of sodium nitrite are needed for a reaction. the solution is 0.450 m. how many ml are needed?
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\boxed{\text{667 000 mL}}

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\begin{array}{rcl}0.450 & = & \dfrac{300}{V}\\\\0.450V& = & 300\\\\V & = & \dfrac{300}{0.450}\\\\V & = & \text{667 L} =\textbf{667 000 mL}\end{array}\\\text{The volume of solution needed is }\boxed{\textbf{667 000 mL}}

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