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When we estimate distances from velocity data, it is sometimes necessary to use times
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CALCULUS, EARLY TRANSITIONS (LL)
- Table 6 shows the population, in thousands, of harbor seals in the Wadden Sea over the years 1997 to 2012. a. Let x represent time in years starting with x=0 for the year 1997. Let y represent the number of seals in thousands. Use logistic regression to fit a model to these data. b. Use the model to predict the seal population for the year 2020. c. To the nearest whole number, what is the limiting value of this model?arrow_forwardRepeat Example 5 when microphone A receives the sound 4 seconds before microphone B.arrow_forwardFRQ #2: Directions: Show all your work. Indicate clearly the methods you use, because you will be scored on the correctness of your methods as well as on the accuracy and completeness of your results and explanations. Windmills generate electricity by transferring energy from wind to a turbine. A study was conducted to examine the relationship between wind velocity in miles per hour (mph) and electricity production in amperes for one particular windmill. For the windmill, measurements were taken on twenty-five randomly selected days, and the computer output for the regression analysis for predicting electricity production based on wind velocity is given below. The regression model assumptions were checked and determined to be reasonable over the interval of wind speeds represented in the data, which were from 10 miles per hour to 40 miles per hour. a) Use the computer output above to determine the equation of the least squares regression line. Identify all variables used in the…arrow_forward
- . At wind speeds above 1000 cm/sec, significant sand–moving events begin to occur. Wind speeds below 1000 cm/sec deposit sand and wind speeds above 1000 cm/sec move sand to new locations. The cyclic nature of wind and moving sand determines the shape and location of large dunes. At a test site, the prevailing direction of the wind did not change noticeably. However, the velocity did change. 75 wind speed readings gave an average velocity of x =1045 cm/sec. Based on long–term experience, can be assumed to be 240 cm/sec Find a 99% confidence interval for the population mean wind speed at this site. (Round your answers to the nearest whole number) (DO A MANUAL CALCULATION, SHOWING ALL WORK INCLUDING THE EQUATION USED AND THEN WITH ALL VALUES PLUGGED INTO THE EQUATION)(SHOW WORK ABOVE) [final answer] Margin of Error: E = (value with units)[final answer] Confidence Interval : _________________ < __________________ < __________________ (value with units) (correct symbol) (value with…arrow_forwardPlease provide step by step explanations, Thank you!arrow_forwardQuestion # 10 Calculate The Average Speed Reference Q. 15261 Al and Bob, who live in North Vancouver, are Seattle Mariners fans. They regularly drive the 264 km from their home to the ballpark in Seattle. On one particular day, Bob drove to the game. On the return journey Al was able to increase their average speed by 10% and save 18 minutes on the travelling time. Calculate the average speed at which Bob drove the game. Calculate the time it took Al to drive back from the game. biuov lout rbirw.(HO HDlonisrte bne H) anscue to asitenob n ebor to Jriait nl bne zenu nb ba nlera mont abnuogrnop uol or ot ascisv Hàso 2s alomsxe 1o) loutio elom eq pseh ar 0o2om to tedmun srir yd a noimss ol negyxo to elom 1ag HA6 LODvig iweiT (onsrio tr mot bezeelen sd nga ot nene to muons ar upda yse uea air a Sanoibeg noarrow_forward
- J pubb. Two trains travel on parallel tracks that are 5 km long. One starts at the southern end, travelling north at a constant speed of 25 ms-. The second train starts at the northern end 40s later, travelling south at a constant speed of 15 ms-. Sketch the two displacement-time graphs on the same set of axes. a b Find the time for which the first train has been moving and the distance the first train has travelled when the trains pass each other.arrow_forwardThe graph below shows the velocities of two cyclists traveling in the same direction. If initially the two cyclists are alongside each other, when does Cyclist 2 overtake Cyclist 1? v (ft/min) |Cyclist 2 Cyclist 1 1500 t (min) 1 Select one: a. Cyclist 2 does not catch up to Cyclist 1. b. Between 1.25 and 1.75 minutes C. Between 1.75 and 2.25 minutes d. Between 0.75 and 1.25 minutesarrow_forwardQuestion 8. The graph below shows the influence of temperature, I, on the swimming speed, S, of Coho salmon. (cm/s) 20 10 0 10 20 T(°C) (a) Estimate the value of S(25). Provide appropriate units and interpretation. (b) Estimate RRC at T = 25°C. Provide appropriate units and interpretation. (c) Use linear approximation to estimate the swimming speed at T = 30°C.arrow_forward
- The tip of a one-link robot is located at? = 3 ?∕4 rad at time t = 0 s as shownin Fig. P6.5. It takes 2 s for the robot tomove from ? = 3 ?∕4 rad to ? = 3 ?∕4 +2 ?rad. If l = 15 cm, plot the x- andy-components as a function of time.arrow_forwarde An airplane flying on a straight flight path will be exactly above a radar tracking station, which is 5,000 km below the path. When the distance of the plane from the station is 40,000 km, this distance decreases at the rate of 8,000 km/hr. At what rate is the plane flying at that instance? novi f. A truck travelling southwards at 40 kph and a car traveling eastward at a rate of 60 kph are headed for an intersection. At what rate are the vehicles approaching each other when the truck is 1 km from the intersection while the car is 2 km from the intersection? g. Water is being poured at the rate of 5 m³/sec into an inverted conical tank of radius 10 m and altitude 20 m. How fast is the water level rising when the water level is at 8 m? (Note: Here you will be using the concepts of similar triangles in order to rewrite the radius in terms of the height.) itoun bont h. A particle is moving along the curve with equation y = 3-x. At the point (2, 1), it was observed that the x-coordinate…arrow_forwardAn object is traveling in a linear path. In the following table, you have times, t, in seconds and velocities, v, in meters/second for this object over its first 30 second period. a. Draw a velocity vs. time graph representing the information in this table. b. Set up the exact calculation for Simpson’s Rule describing how far the object has traveled in the first 30 seconds. c. Use your expression for Simpson’s Rule in part b and your calculator to approximate an answer to how the object traveled in the first 30 seconds, accurate to the nearest meter. d. What part of your graph represents the numerical answer you calculated in part c?arrow_forward
- Algebra & Trigonometry with Analytic GeometryAlgebraISBN:9781133382119Author:SwokowskiPublisher:CengageTrigonometry (MindTap Course List)TrigonometryISBN:9781337278461Author:Ron LarsonPublisher:Cengage Learning