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SCAN0037 - 7 A 3.50 g bullet is fired horizontally at two...

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Unformatted text preview: 7. A 3.50 g bullet is fired horizontally at two blocks resting on a smooth surface. The bullet passes through the first block, with mass 1.20 kg and embeds itself in the second block, with mass 1.80 kg. The first block has a velocity of 0.630 m/s after the bullet passes through it. The second block has a velocity of 1.40 m/s with the bullet embedded in it. Neglect the mass removed from the first block as the bullet passes through. What is the initial speed of the bullet? “1&2; m‘ __ L: s ‘> it‘ll: rm El: m W‘s-“79> 2 Mar. +(W\g+mb3131 (\TB: l\ZD(O~Q>303-l (\.%O+ 0.0031305403 b.0033 8. An atomic nucleus initially moving at 420 m/s emits an alpha particle in the direction of its velocity and the remaining nucleus slows to 350 m/s. If the alpha particle has a mass of 4.0 u and-the original nucleus has a mass of 222 u, what speed does the alpha particle have when it is emitted? t ' mat M“ 3 (2,22. UK m“ MU“ 02% (\S‘d mfik: L\«OU\ (\va : HZOm/S AP 2. 0 => 53; = R9 mg = th-thjmux “(\an : mh’ “TN + mdvck 222( 420) = 2:8(3503 + L} i); , 211 0410 ~ 2.13 350) “31* u L: C ...
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