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Manh
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Homework Statement
A uranium-238 atom can break up into athorium-234 atom and a particle called an alpha particle, α-4. The numbers indicate the inertias of the atoms and the alpha particle in atomic mass units (1 amu = 1.66 × 10^−27 kg). When an uranium atom initially at rest breaks up, the thorium atom is observed to recoil with an x component of velocity of -2.1 × 10^5 m/s.
Homework Equations
K = 1/2mv^2
The Attempt at a Solution
K = 1/2(1.66 x 10^27 kg)(-2.1 x 10^5 m/s)^2
K = 3.66 X 10^-17 J