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Earth has a definite orbit within the solar system. This orbit is mainly a result of the.

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KatRina [158]2 years ago

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The orbit is mainly a result of the mass of the sun

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A ballistic pendulum is a device for measuring bullet speeds. One of the simplest versions consists of a block of wood hanging f

jeka94

Answer:

0.043 m upwards

Explanation:

The mass of the bullet, $m_1$ = 0.013 kg

Mass of the ballistic pendulum, $m_2$ = 3 kg

Velocity of the bullet, $v_1$ = 320 m/s

Therefore, from the law of conservation of momentum, we get

$m_1v_1+m_2v_2=m_1v_1^1+m_2v_2^1$

$(0.013 \times 320)+(3 \times 0) = \left(0.013 \times \frac{320}{0}\right) + (3 \times v_2^1)$

$3 \times v_2^1=2.774$

$v_2^1=0.92 \ m/s$

Therefore the required height to rise the block is given by :

$(v_2^1)^2-v_2^2=2gh$

$h=\frac{(v_2^1)^2-v_2^2}{2g}$

$h=\frac{(0.92)^2-0}{2(-9.81)}$

$h=-0.043 \ m$

Therefore, the block moves upwards for 0.043 meters.

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