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Social Studies, 16.12.2020 22:50 murarimenon

In science, it is important to be able to distinguish between an experiment and other scientific investigations. Which of the following is the best example of an experiment? a, measuring the frequency of the fire alarm at your school

b, measuring the wavelengths of various sources of blue light

c, measuring the wavelengths of x-rays and gamma rays from Barnard's Star

d, measuring the change of frequency of a car horn every five meters as the car drives away

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