Find the momentum and speed of a proton whose kinetic energy equals its rest energy. (The mass of a proton is 938.3 MeV/c2).
What will be an ideal response?
1625 MeV/c, 0.8660c
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What happens to the magnitude of the magnetic field inside a long solenoid the length of the solenoid is doubled, with the number of turns remaining the same?
1.It becomes four times larger. 2.It becomes twice as large. 3.It is unchanged. 4.It becomes one-half as large. 5.It becomes one-fourth as large.
Suppose a uniform electric field of 4 N/C is in the positive x direction. When a charge is placed at and fixed to the origin, the resulting electric field on the x axis at x = 2 m becomes zero. What is the magnitude of the electric field at x = 4 m on the x axis at this time?
a. 0 b. 1 N/C c. 2 N/C d. 4 N/C e. More information is needed to find the resulting field magnitude at this position.
The Kuiper Belt objects have orbits that
A) carry them thousands of AU beyond the Sun. B) stay out just beyond Neptune and close to the ecliptic. C) stay sixty degrees ahead of or behind Jupiter. D) cross the orbit of Mars at perihelion. E) cross the orbit of Earth at perihelion.
Which characteristic listed below describes the jovian planets?
A) close to the Sun B) small masses C) low density D) solid surfaces E) slow rotational period