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kiruha [24]
3 years ago
14

Which statement describes something that should always be done at the end of a calculation?

Physics
2 answers:
Elanso [62]3 years ago
8 0
Answer: C) Check that the numerical answer is reasonable and the units are what you expected.

Explanation: C is the answer because it’s makes the most sense ofc and u just have to read it over and think hard about the answer if u look on goggle they show ways to solve stuff like this and videos not saying u have to just helping you out.
Reika [66]3 years ago
5 0

Answer:

C) Check that the numerical answer is reasonable and the units are what you expected.

Explanation:

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nirvana33 [79]

The time elapsed when the vehicles are closest to each other is 20 min.

The given parameters:

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<h3>Principles of relative speed</h3>

The time elapsed when the cars are close to each other is calculated by applying the principles of relative speed.

(V_r) t = d\\\\V_r^2 = 50^2 + 80^2\\\\V_r =\sqrt{50^2 + 80^2} \\\\V_r = 94.34 \ km/h

94.34 t = 32\\\\t = \frac{32}{94.34} \\\\t = 0.34 \ hr\\\\t \approx 20 \min

Thus, the time elapsed when the vehicles are closest to each other is 20 min.

Learn more about relative velocity here: brainly.com/question/24430414

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Answer:

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<h3>unkown:</h3>

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I think the correct answer from the choices listed above is the second option. The <span> idea of plate tectonics was difficult for many scientists to accept for many years after it was first introduced because there </span><span>was no explanation yet for how it was happening. It was only to the recent times that these were proven. </span>
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