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A block that slides on a rough surface slows down and eventually stops.The reverse process never occurs.That is,a block at rest never begins to move and accelerate on a rough surface without the action of an external agent.The second situation is forbidden because it would violate
American College Testing
A standardized test used for college admissions in the United States that assesses a student's readiness for college-level work.
Margin of Error
A measure of the range of values below and above the sample statistic in a confidence interval within which the true population parameter is expected to lie.
Sample Mean
The mean of a set of samples, obtained by adding all the values together and then dividing by the total count of observations.
Weekdays
The days of the week typically considered as working days, usually Monday through Friday, excluding the weekend.
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