Which of the following works best for fusing hydrogen?
A) Hit the hydrogen nucleus with a neutron.
B) Hit the hydrogen nucleus with an electron.
C) Cool the hydrogen until the nuclei are at rest and then suddenly compress them.
D) Bring the hydrogen nuclei together very slowly until they hold together.
E) Heat it up to such a high temperature that collisions cause the nuclei to fuse.
E
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An electron moving in the positive x direction experiences a magnetic force in the positive z direction. If Bx = 0, what is the direction of the magnetic field?
a. negative y direction b. positive y direction c. negative z direction d. positive z direction e. negative x direction
Why did the Moon's internal heat escape more rapidly than Earth's?
What will be an ideal response?
How does the light from active galaxies differ from that of a normal galaxy?
What will be an ideal response?
A 5.00 kg mass is located at (2.00 m, 0.00 m, 3.00 m) and a 2.00 kg mass is located at (0.00 m, 4.00 m, –2.00 m). The center of gravity of the system of masses is
A. (10/7m, 8/7m, 11/7m). B. (11/7m, 7/7m, 8/7m). C. (7/7m, 10/7m, 11/7m). D. (10/7m, 7/7m, 8/7m). E. (8/7m, 7/7m, 10/7m).