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3 years ago

5

Arturo dreams about travelling to faraway stars someday. He read that the closest star to Earth is Proxima Centauri, which is 4.

25 light years away. He also read that the Law of Special Relativity says that the mass of an object increases as its speed increases. It approaches infinity as it approaches the speed of light. How does this most likely affect the goals of the United States space program?

1 answer:

Sergeeva-Olga [200]3 years ago

5 0

Answer:

It will keep the goals from being comeplet when they wanted it to.

Explanation:

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What’s the equation for the alpha decay of plutonium-244.

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Answer:

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To solve this problem it is necessary to apply the concepts related to the conservation of momentum and conservation of kinetic energy.

By definition kinetic energy is defined as

$KE = \frac{1}{2} mv^2$

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On the other hand we have the conservation of the moment, which for this case would be defined as

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Here,

m = Total mass (8Kg at this case)

$m_1=m_2 =$ Mass each part

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$KE_i=\frac{1}{2}mv^2$

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In the end the energy increased 100J, that is,

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By conservation of the moment then,

$m*V_i = m_1V_1+m_2V_2$

Replacing we have,

$(8)*5 = 4*V_1+4*V_2$

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$KE_f = \frac{1}{2}mv^2$

$KE_f = \frac{1}{2}4*(V_1^2+V_2^2)$

$200J=\frac{1}{2}4*(V_1^2+V_2^2)$ (2)

So we have a system of 2x2 equations

$V_2 = 10-V_1$

$200J=\frac{1}{2}4*(V_1^2+V_2^2)$

Replacing (1) in (2) and solving we have to,

200J=\frac{1}{2}4*(V_1^2+(10-V_1)^2)

PART A: $V_1 = 10m/s$

Then replacing in (1) we have that

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Answer:

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