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Ethan H.
Cadet, United States Military Academy
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Mandarin
TutorMe
Question:

請問, 你最喜歡吃的菜是甚麼?

Ethan H.
Answer:

對我來說, 最好吃的菜就是台灣菜.

Nuclear Engineering
TutorMe
Question:

Determine the amount of time a 5.0MeV $$\alpha$$ particle travels through silicon before stopping.

Ethan H.
Answer:

$$t=1.2*10^{-7}R\sqrt(m_{A}/E)$$ E= 5.0 MeV; $$m_{A}=4.001474 amu$$; $$R=110*10^-6m$$ for silicon $$t=1.18*10^{-11} sec$$

Calculus
TutorMe
Question:

The acceleration due to gravity of a free falling object is 32 $$ft/s^2$$. Calculate the displacement of the object after 3 seconds.

Ethan H.
Answer:

$$d^2x/dt^2=32$$ $$dx/dt=\int d^2x/dt^2=32t$$ $$x=\int dx/dt=16t^2$$ $$x(3)=16(3)^2=144$$

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