Elliptical galaxies contain more gas, dust, and young stars than do Sa galaxies
a. True
b. False
Indicate whether the statement is true or false
False
Physics & Space Science
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Name the dependent and independent variables in Procedure 2
Physics & Space Science
Carbon-14 dating can be used to find the age of material up to millions of years old
a. True b. False Indicate whether the statement is true or false
Physics & Space Science
The experiment, which gave the first evidence for the existence of the atomic nucleus, involved which of the following?
a. x-ray scattering b. radioactive dating c. cosmic ray detection d. alpha scattering
Physics & Space Science
Radioactive Decay: What happens to the half-life of a radioactive substance as it decays?
A. It remains constant. B. It increases. C. It decreases at a constant rate. D. It decreases at an exponential rate.
Physics & Space Science