📅 NSB 2017🎓 HS🔄 Round 7#️⃣ Q8🌟 BONUS✍️ Short Answer
An atom of uranium-235 at rest undergoes spontaneous nuclear fission to form krypton-94 and barium-141. If the barium atom moves away at 4 kilometers per second, what is the speed, to the nearest kilometer per second, of the krypton atom?
✔️Answer:6
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