Nuclear Binding Energy: When a stationary plutonium-239 nucleus decays into a uranium-235 nucleus plus an alpha particle, the energy released in the process is 5.24 MeV. The following masses are known:What is the kinetic energy of theĀ U nucleus? (1 u = 931.5 MeV/c2)

A. 0.0829 MeV
B. 0.0837 MeV
C. 0.0852 MeV
D. 0.0863 MeV
E. 0.0877 MeV


Answer: E

Physics & Space Science

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The acceleration of a ball as it rolls down a ramp is 4 m/s2 . The ball is referred to 2 s after it starts to roll. The distance from the starting point in meters is

a. 0. b. 2. c. 4. d. 8. e. 16.

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Figure R5.10 shows a two-observer space time diagram for an Other Frame that moves at a speed of 0.5 relative to the Home Frame. What are the coordinates of event Q in the Other Frame?



A. t ? = x ? = 5.2 s
B. t ? = x ? = 3.2 s
C. t ? = x ? = 2.6 s
D. t ? = x ? = 1.7 s
E. Other (specify)

Physics & Space Science

The Milky Way looks the same in X-rays as it does at infrared wavelengths

Indicate whether the statement is true or false

Physics & Space Science

The latent heat of vaporization of water is roughly 10 times the latent heat of fusion of water. The amount of heat required to boil away 1 kg of water is 10 times the amount of heat required to melt 1 kg of ice

a. True b. False Indicate whether the statement is true or false

Physics & Space Science