Neutrinos travel from the Sun's core to the Earth in
A) millions of years.
B) thousands of years.
C) a few days.
D) a few hours.
E) a few minutes.
E
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A low-luminosity star has a small and narrow ____, whereas a high-luminosity star has a large and wide one
a. UV range b. life capability c. habitable zone d. adaptable zone e. water hole
Why do stars in the halo of the galaxy have almost no heavy elements such as carbon, nitrogen, and oxygen?
A.) Those elements have been used up in halo stars. B.) Heavy elements are biological, and there is no life out there to make them. C.) Halo stars formed before those elements were made. D.) Making C, N, and O requires massive stars, and there are no massive stars in the halo. E.) None of the above.
How much energy is necessary to place three charges, each of 2.0 ?C, at the corners of an equilateral triangle of side 2.0 cm?
What will be an ideal response?
Liquid crystal displays make use of __________
Fill in the blank(s) with correct word