ew offsetenext& https. Resources Colions Problem 6.106 e previous 6 of 13 I nex

Question

ew offsetenext& https. Resources Colions Problem 6.106 e previous 6 of 13 I nex Time Remaining: 00:28:20 Hids Problem 6.106 Part A Marie Curie first identified the element radium in 1898 She found that radium-226 (mass 3 77 10 If the alpha partide's speed is 2 4 × 10sm/s, what's the speed of the recoling nucleus? Express your answer to two significant figures and include the appropriate units. kg) decays by emitting an alpha particle (mass 664 × 10-zrkg) Value Units Submit My Answers Give Up Continue

Explanation / Answer

Conserving momentum

Let the recoil speed is v m/s

3.77*10(-25)*v=6.64*10(-27)*2.4*10(6)

We got v=4.23*10(4) m/s

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