Three Particles Are Placed in the Xy Plane

question 27

Multiple Choice

Three particles are placed in the xy plane.A 30-g particle is located at (3,4) m,and a 40-g particle is located at (-2,-2) m.Where must a 20-g particle be placed so that the center of mass of the three-particle system is at the origin?

• A)(-3,-1)m
• B)(+1,+3)m
• C)(+3,-1)m
• D)(-1,-3)m
• E)(-0.5,-2)m

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Definitions:

Populations

Refers to the entire group of individuals or items that are the subject of a statistical study.

Critical Value

A point on the scale of the test statistic beyond which we reject the null hypothesis; it is used to determine the cutoff at which the test statistic is considered extreme.

P-value

The probability of observing test results as extreme as the results actually observed, under the assumption that the null hypothesis is true.

Level of Significance

The criterion used in statistical testing to decide whether to reject the null hypothesis, typically expressed as a probability threshold such as 0.05 or 0.01.