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What are the degrees of freedom for a Pearson's correlation coefficient if the covariance of x and y = 4, and the sample size = 250?
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Two 2.0-cm-diameter disks face each other, 1.0 mm apart. they are charged to ±10 nc. what is the electric field strength between the disks? a proton is shot from the negative disk toward the positive disk. what launch speed must the proton have to just barely reach the positive disk?
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X-ray crystallography is used to see the structure of molecules. scientists have used the technique to find the structure of cholesterol an important biological molecules knowledge of a structure of cholesterol is because it may affect?
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Calculate the linear momentum of a pickup truck that has a mass of 1000kg, and is traveling eastward at 20 m/s
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What are the degrees of freedom for a Pearson's correlation coefficient if the
covariance of x and...
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