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Question: A helicopter rotor slows down at a constant rate from 350 revs/min to 260 revs/min in 1.5 minutes.
(a) Find the angular acceleration during this time interval. What are the units of this acceleration?
(b) Assuming the angular acceleration remains constant, how long does it take for the rotor to stop? (Measure time from the moment when speed was 350 revs/min.)
(c) How many revolutions does the rotor make between the time the angular speed was 350 revs/min and stopping?
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Integrating a differential equation given the initial values and exponentiate both sides of the equation for to solve for P(t)
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Justings Co. owned 80% of Evana Corp. During 2006, Justings sold to Evana land with a book value of $48,000. The selling price was $70,000.
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Mariella is selling raffle tickets for a school fundraiser. Adult tickets cost $4 and student tickets cost $3. If she has collected %165 so far, how many adult tickets did she sell?
"In theory, the results of such a poll, in 99 cases out of 100 should differ by no more than 5 percentage points in either direction from what would have been obtained by interviewing all voters in the United States." Find the sample size suggeste..
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