A uranium nucleus (mass 238 units) at rest decays into a helium nucleus (mass 4.0 units) and a thorium nucleus (mass 234 units). If the speed of the helium nucleus is 5.5 Ɨ 10^5 m/s, what is the speed of the thorium nucleus?

a. 9.4E+3 m/s
b. 3.2E+7 m/s
c. 3.4E+3 m/s
d. 9.4E+7 m/s
e. 1.9Eā€“1 m/s


a

Physics & Space Science

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At the center of the Sun, nuclear fusion converts hydrogen into

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A baseball is thrown and lands 120 m away. While the ball is in flight, assuming the effect of air friction is negligible, which of the following is true?

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Which of the following is not used as a distance indicator for galaxies?

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A 6.00 kg mass is located at (2.00 m, 2.00 m, 2.00 m) and a 5.00 kg mass is located at (ā€“1.0 m, 3.00 m,ā€“2.00 m). If this system of masses rotated about the X-axis perpendicular to the Z-Y plane, then the moment of inertia of this system is

A. 281 kg
B. 167 kg
C. 113 kg
D. 85 kg
E. 69 kg

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