Chemistry is the study of
A) matter.
B) transformations of matter.
C) only microscopic phenomena.
D) only macroscopic phenomena.
E) both A and B
Answer: E
Physics & Space Science
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Indicate whether the statement is true or false
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The pregalactic blobs had masses similar to
A) dwarf galaxies. B) the Sun. C) the Earth. D) the Milky Way. E) open clusters of stars.
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An unknown particle in an accelerator moving at a speed of 1.50 × 10^8 m/s has a measured total energy of 3.30 × 10^?9 J. What is its mass? (c = 3.00 × 10^8 m/s)
a. 4.23E–26 kg b. 9.17E–27 kg c. 7.78E–26 kg d. 3.18E–26 kg e. 3.67E–26 kg
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The fast, downslope movement of large blocks of weathered materials is called a(n) ______________
Fill in the blank(s) with correct word
Physics & Space Science