In a certain nuclear reactor, neutrons suddenly collide with deuterons, which have twice the mass of neutrons
In a head-on elastic collision with a stationary deuteron, what fraction of the initial kinetic energy of a neutron is transferred to the deuteron? A) 1/2
B) 1/3
C) 3/4
D) 5/6
E) 8/9
E
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A light source radiates 60.0 W of single-wavelength sinusoidal light uniformly in all directions
What is the amplitude of the electric field of this light at a distance of 0.400 m from the bulb? (?0 = 8.85 × 10-12 C2/N ? m2, ?0 = 4? × 10-7 T ? m/A, c = 3.00 × 108 m/s) A) 162 N/C B) 212 N/C C) 82.1 N/C D) 150 N/C E) 52.9 N/C
Which is the largest?
A) The distance from the Sun to the center of the Milky Way Galaxy B) The distance from the Sun to the Virgo cluster of galaxies C) The distance from the Sun to its nearest neighboring star D) The distance from the Sun to the Andromeda Galaxy E) The Solar System.
A test charge of +3 ?C is at a point P where the electric field due to other charges is directed to the right and has a magnitude of 4 x 106 N/C. If the test charge is replaced with a –3 ?C charge, the electric field at P
1.has the same magnitude as before, but changes direction. 2.increases in magnitude and changes direction. 3.remains the same. 4.decreases in magnitude and changes direction.
the magnetic field in the primed frame.
A. A B. B C. C D. D E. Toward the viewer F. Away from the viewer T. There is no field of this type.