Interstellar dust consists mostly of
A) microscopic particles of carbon and silicon.
B) ozone "smog."
C) hydrogen and helium atoms.
D) tiny grains of water ice.
E) the same tiny particles found in household dust.
A) microscopic particles of carbon and silicon.
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The separation of forces in the grand unified theory occurs after inflation
a. True b. False Indicate whether the statement is true or false
Kirchhoff's rules are the junction rule and the loop rule. Which of the following statements is true?
a. Both rules are based on the conservation of charge. b. Both rules are based on the conservation of energy. c. The junction rule is based on the conservation of charge, and the loop rule is based on the conservation of energy. d. The junction rule is based on the conservation of energy, and the loop rule is based on the conservation of charge.
The sun's magnetic field is evident in the looped shapes of
a. solar flares. b. sunspots. c. the corona. d. granules. e. prominences.
If the diameter of a wire increases, its resistance __________
Fill in the blank(s) with correct word