A Ball Drops Some Distance and Loses 30 J of Gravitational

question 19

Multiple Choice

A ball drops some distance and loses 30 J of gravitational potential energy.Do NOT ignore air resistance.How much kinetic energy did the ball gain?

• A) more than 30 J
• B) exactly 30 J
• C) less than 30 J

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Definitions:

Two-tailed Hypothesis Test

A statistical test in which the critical area of a distribution is two-sided and tests whether a sample is greater than or less than a certain range of values.

Test Statistic

A calculated value from sample data used to decide whether to reject the null hypothesis in hypothesis testing.

P-value

The P-value is a statistical parameter that helps to determine the significance of the results from a hypothesis test, indicating the probability of observing the results if the null hypothesis is true.

P-value

A statistic that measures the probability of obtaining an observed result, or more extreme, under the assumption that the null hypothesis is true.