What is the Q of the reaction The rest mass of the proton is 938 MeV/c2 and of the neutral point is 135 MeV/c2

A. 187 MeV
B. 135 MeV
C. 938 MeV
D. -187 MeV
E. -135 MeV


E. -135 MeV

Physics & Space Science

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A point charge Q is placed on the x axis at x = ?2.0 m. A second point charge, ?Q, is placed at x = 1.0 m. If Q = 60 ?C, what is the magnitude of the electrostatic force on a 40-?C charge placed at the origin?

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Physics & Space Science

If the average translational kinetic energy of the molecules of one sample of gas has twice the value of that of another sample of gas, how do the internal energies of the two gases compare?

1.The internal energy of the first gas is greater. 2.The internal energy of the second gas is greater. 3.The internal energies of both gases are the same. 4.We cannot determine which gas has the greater internal energy.

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Given the distance x that a spring is compressed, what is the potential energy of the spring?

A. 2 kx^2 B. ½ kx C. ½ kx^2 D. 2 kx

Physics & Space Science

The outward pressure of hot gas in the Sun:

A) is balanced by the inward gravitational pressure. B) is increasing the Sun's diameter. C) is cooling the photosphere. D) is responsible for variations in the sunspot cycle. E) weakens the magnetic field.

Physics & Space Science