The equation of continuity is a statement of the
A) conservation of linear momentum.
B) conservation of mass.
C) conservation of energy.
D) conservation of kinetic energy.
E) conservation of angular momentum.
B
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Rosalind Franklin's research contribution was essential in
a. discovering the existence of DNA. b. establishing the principles of heredity. c. establishing the structural features of DNA. d. determining the nucleotide sequence of genes. e. determining the tertiary structure of proteins.
According to the uncertainty principle, which of the following statements is true?
A) It is impossible to measure both the position and the momentum of a particle at the same time. B) It is impossible to measure both the mass and the momentum of a particle at the same time. C) It is impossible for science to make any meaningful predictions about nature whatsoever. D) It is impossible to measure both the speed and direction of a particle at the same time.
Each circle represents an atom. Which of the following boxes contains an element? A compound? A mixture?
A) element: A, C; compound: A, B, C; mixture: A, B B) element: C; compound: A, B; mixture: B C) element: A, C; compound: A, B; mixture: A D) element: A, C; compound: A, B; mixture: A, B
When we say charges are ‘positive' or ‘negative' we are speaking of
a. two intrinsically different types of charge found in nature b. an excess vs. a deficiency of charge c. charges existing vs. not existing d. none of the above