A particle moves along the X-axis so that its position at timet is given by x(t) = t^4 – t^3 – 4t^2 + 5t - 2. What is the velocity of the particle when its acceleration
is first equal to 0?

On a certain portion of an experiment, a statistical test result yielded a p-value of 0.18. what can you conclude? 2(0.18) = 0.36 < 0.5; the test is not statistically significant. if the null hypothesis is true, one could expect to get a test statistic at least as extreme as that observed 18% of the time, so the test is not statistically significant. if the null hypothesis is true, one could expect to get a test statistic at least as extreme as that observed 82% of the time, so the test is not statistically significant. 0.18 > 0.05; the test is statistically significant. p = 1 - 0.18 = 0.82 > 0.05; the test is statistically significant.

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Which amusement park ride utilizes periodic motion a.slide b.bumper cars c.giant swing d.roller coaster