In Heisenberg's formula, ?p ?x? h, the ? symbolizes
A) increase in.
B) decrease in.
C) change in.
D) uncertainty of.
E) certainty of.
Answer: D
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Indicate whether the statement is true or false
A positively charged particle is released from rest in a uniform electric field. Which statement regarding the electron is correct?
a. The particle's kinetic energy increases. b. The particle's total energy increases. c. The electric potential at the particle's location increases. d. The particle's associated electric potential energy increases. e. None of the statements are correct.
When the Sun is on the meridian, it is by definition ______________ local solar time
Fill in the blank(s) with correct word
What is happening deep inside a star while it expands into a subgiant?
A) It is fusing hydrogen to produce helium in the core. B) It is fusing hydrogen to produce helium in a shell around the core. C) It is fusing helium to produce carbon in the core. D) It is fusing helium to produce carbon in a shell around the core. E) It is not fusing any element; it is contracting and heating up.