Most of the energy during the collapse of the iron core of a supergiant star is released in the form of neutrinos-nearly massless subatomic particles that rarely interact with matter. So how is it they can blow away a star's outer shells?
A. by developing a temporary, but relatively strong positive charge
B. Although they rarely interact with matter, the sheer number released during the collapse is enough to move most of the star's mass into surrounding space at incredibly high rates of speed.
C. by creating a massive magnetic field that convulses in on itself, ripping away the stars outer shells
D. When neutrinos exceed a certain speed, 22,300 km/s, they interact with matter quite effectively.
Answer: B
You might also like to view...
Electric power is measured in units of
A. watts. B. joules per second. C. both are equivalent D. none of the above
During what period did transportation policy shift to deregulation and privatization?
A) It was never regulated. B) 1930s C) 1950s D) 1970s E) It is still regulated
The main reason hurricanes don't develop over the South Atlantic Ocean adjacent to South America is because the
a. Coriolis force is too small there. b. pressure gradient force is too weak in that area. c. surface water temperatures are too cold. d. air at the surface is always diverging. e. winds don’t spin into the right direction.
Which type of economic activity provides services to other sectors and goods and services to businesses and to individuals?
A. primary B. secondary C. tertiary D. mandatory