The method of dating the ages of rock and fossils using isotopic abundances is referred to as
A) radiometric dating
B) speed dating
C) dendrochronology
D) radiochronology
A
Physics & Space Science
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A block pulled to the left with 15 N and to the right with 5 N at the same time experiences a net force of
A) 5 N. B) 10 N. C) 15 N. D) 20 N.
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Luminosity class V stars are larger than class Ia stars
Indicate whether the statement is true or false
Physics & Space Science
Among the following items, the largest single source of radiation in the environment is
A) fallout. B) radon. C) medical diagnosis. D) nuclear power plants. E) cosmic rays.
Physics & Space Science
A rectangular-shaped patio has a base length equal to (24.5 ± 0.2) m and a height equal to (9.3 ± 0.1) m. What is the area of the patio, including its uncertainty?
a. 228 ± 4 b. 228 ± 2 c. 228 ± 23 d. 228 ± 6
Physics & Space Science