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Savatey [412]
2 years ago
7

What do you think is the most important invention or innovation from the past 100 years? Please explain your answer, and tell me

how it has impacted society. How has technology impactad​
Physics
1 answer:
mr_godi [17]2 years ago
4 0
It the ecosystem and the cuclí
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The mass of the car?
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Answer:

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Explanation:

The formula for kinetic energy is:

KE (kinetic energy) = 1/2 × m × v² where <em>m</em> is the <em>mass in kg </em>and <em>v</em> is the velocity or <em>speed</em> of the object <em>in m/s</em>.

We can now substitute the values we know into this equation.

KE = 472 500 J and v = 30 m/s:

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Next, we can rearrange the equation to make m the subject and solve for m:

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m = 472 500 ÷ 450

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