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enyata [817]
3 years ago
15

A gasoline engine transform approximately 34 percent of the fuel's chemical energy into mechanical energy. if energy is conserve

d what happenes to the other 66 percent?
Physics
1 answer:
nekit [7.7K]3 years ago
6 0

A) Most is transformed into thermal energy. I took the test.


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In midair an M = 145 kg bomb explodes into two pieces of m1 = 115 kg and another, respectively. Before the explosion, the bomb w
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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.

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

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

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If two cars are 5 m apart, and one car has a mass of 2,565 kg and the other
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