In an Elastic Collision,one Ball Has Initial Velocity V and Strikes

question 18

Multiple Choice

In an elastic collision,one ball has initial velocity v and strikes another,much less massive ball,that is initially at rest in a head-on collision.The velocity of the second ball after the collision is equal to:

• A) v
• B) 2v
• C) v/2
• D) -v
• E) something else

Interpret the results of chi-square tests, including decision on null hypothesis based on significance levels.

Understand the concept of critical values in the context of chi-square tests.

Calculate expected frequencies in chi-square tests.

Understand and calculate effect sizes for chi-square tests.

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