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Natasha_Volkova [10]
3 years ago
14

An athlete runs four laps of a 400 m track. What is the athlete's total displacement?​

Physics
1 answer:
sasho [114]3 years ago
7 0

Answer:

○ 0 \checkmark

Explanation:

Even if the athelete runs four laps of a 400 m track, its displacement will be 0 because the displacement is the shortest distance from its to final position. And, here the final and initial position is same since he comes to its initial position after covering certain distance. So, displacement is 0.

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Answer:

Option D) -0.0707

Explanation:

We are given the following in the question:  

Population mean, μ = 45 mp

Sample mean, \bar{x} = 44.9

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Formula:

t_{stat} = \displaystyle\frac{\bar{x} - \mu}{\frac{s}{\sqrt{n}} }

Putting all the values, we have

t_{stat} = \displaystyle\frac{44.9 - 45}{\frac{10}{\sqrt{50}} } = -0.0707

Thus, the test statistic is

Option D) -0.0707

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blagie [28]
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Sliva [168]

Answer:

Option c. Correlational

Explanation:

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3 0
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Movies and TV shows sometimes portray a person being thrown backwards a sizable distance as a result of being struck by a bullet
MAXImum [283]

Answer:

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Explanation:

given,

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V = \dfrac{3.89}{60.31}

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6 0
3 years ago
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ololo11 [35]
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