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wolverine [178]
3 years ago
9

Which of the following would decrease the resistance to the flow of an electric current through a body?

Physics
1 answer:
Art [367]3 years ago
8 0
Shortening the conductor (B) <span> would decrease the resistance
to the flow of an electric current through a body.</span>
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A bus travels east for 3 km, then north for 4 km. What is its final displacement?
ikadub [295]
5 km northeast. Left and up would make northeast

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What mediums are best for light waves?
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3 years ago
In midair an M = 145 kg bomb explodes into two pieces of m1 = 115 kg and another, respectively. Before the explosion, the bomb w
Daniel [21]

Answer:

v_2=-133.17m/s, the minus meaning west.

Explanation:

We know that linear momentum must be conserved, so it will be the same before (p_i) and after (p_f) the explosion. We will take the east direction as positive.

Before the explosion we have p_i=m_iv_i=Mv_i.

After the explosion we have pieces 1 and 2, so p_f=m_1v_1+m_2v_2.

These equations must be vectorial but since we look at the instants before and after the explosions and the bomb fragments in only 2 pieces the problem can be simplified in one dimension with direction east-west.

Since we know momentum must be conserved we have:

Mv_i=m_1v_1+m_2v_2

Which means (since we want v_2 and M=m_1+m_2):

v_2=\frac{Mv_i-m_1v_1}{m_2}=\frac{Mv_i-m_1v_1}{M-m_1}

So for our values we have:

v_2=\frac{(145kg)(24m/s)-(115kg)(65m/s)}{(145kg-115kg)}=-133.17m/s

5 0
3 years ago
This outlaw is executed by hanging "in the spring of '25" by
irina [24]
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This is the first stanza of the song:

"I was a highwayman. Along the coach roads I did ride 
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<span>The b*stards hung me in the spring of twenty-five </span>
<span>But I am still alive."</span>
 
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3 years ago
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Neap tide is when sun and moon are aligned at 90 degrees
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