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Inessa05 [86]
3 years ago
13

Which statement describes a controlled experiment?

Physics
1 answer:
olga_2 [115]3 years ago
7 0

Answer:

In a controlled experiment, an independent variable (the cause) is systematically manipulated and the dependent variable (the effect) is measured; any extraneous variables are controlled. The researcher can operationalize (i.e. define) the variables being studied so they can be objectivity measured.

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With what initial velocity must an object be thrown upward from a height of 2 meters to reach a maximum hieght of 200 meters
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The equations of motion to use for a constant acceleration a = g = -9.81:
v = gt + v_0
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at the highest point the velocity must be zero:
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<span>Reference https://www.physicsforums.com/threads/how-does-a-prism-affect-wavelength.489768/ by caseytrimble

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</span>
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